diff --git a/.github/workflows/codesee-arch-diagram.yml b/.github/workflows/codesee-arch-diagram.yml
deleted file mode 100644
index 0b75778..0000000
--- a/.github/workflows/codesee-arch-diagram.yml
+++ /dev/null
@@ -1,81 +0,0 @@
-on:
-  push:
-    branches:
-      - master
-  pull_request_target:
-    types: [opened, synchronize, reopened]
-
-name: CodeSee Map
-
-jobs:
-  test_map_action:
-    runs-on: ubuntu-latest
-    continue-on-error: true
-    name: Run CodeSee Map Analysis
-    steps:
-      - name: checkout
-        id: checkout
-        uses: actions/checkout@v2
-        with:
-          repository: ${{ github.event.pull_request.head.repo.full_name }}
-          ref: ${{ github.event.pull_request.head.ref }}
-          fetch-depth: 0
-
-      # codesee-detect-languages has an output with id languages.
-      - name: Detect Languages
-        id: detect-languages
-        uses: Codesee-io/codesee-detect-languages-action@latest
-
-      - name: Configure JDK 16
-        uses: actions/setup-java@v2
-        if: ${{ fromJSON(steps.detect-languages.outputs.languages).java }}
-        with:
-          java-version: '16'
-          distribution: 'zulu'
-
-      # CodeSee Maps Go support uses a static binary so there's no setup step required.
-
-      - name: Configure Node.js 14
-        uses: actions/setup-node@v2
-        if: ${{ fromJSON(steps.detect-languages.outputs.languages).javascript }}
-        with:
-          node-version: '14'
-
-      - name: Configure Python 3.x
-        uses: actions/setup-python@v2
-        if: ${{ fromJSON(steps.detect-languages.outputs.languages).python }}
-        with:
-          python-version: '3.10'
-          architecture: 'x64'
-
-      - name: Configure Ruby '3.x'
-        uses: ruby/setup-ruby@v1
-        if: ${{ fromJSON(steps.detect-languages.outputs.languages).ruby }}
-        with:
-          ruby-version: '3.0'
-
-      # CodeSee Maps Rust support uses a static binary so there's no setup step required.
-
-      - name: Generate Map
-        id: generate-map
-        uses: Codesee-io/codesee-map-action@latest
-        with:
-          step: map
-          github_ref: ${{ github.ref }}
-          languages: ${{ steps.detect-languages.outputs.languages }}
-
-      - name: Upload Map
-        id: upload-map
-        uses: Codesee-io/codesee-map-action@latest
-        with:
-          step: mapUpload
-          api_token: ${{ secrets.CODESEE_ARCH_DIAG_API_TOKEN }}
-          github_ref: ${{ github.ref }}
-      
-      - name: Insights
-        id: insights
-        uses: Codesee-io/codesee-map-action@latest
-        with:
-          step: insights
-          api_token: ${{ secrets.CODESEE_ARCH_DIAG_API_TOKEN }}
-          github_ref: ${{ github.ref }}
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 3be5be9..3b91bac 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -6,13 +6,12 @@ variables:
 
 stages:
   - check
-  - build
-  - quality
-  - release
+
+image: registry.gitlab.com/matrixai/engineering/maintenance/gitlab-runner
 
 lint:
   stage: check
-  image: registry.gitlab.com/matrixai/engineering/maintenance/gitlab-runner
+  interruptible: true
   script:
     - >
         nix-shell -I nixpkgs=./pkgs.nix --packages nodejs --run '
@@ -22,142 +21,10 @@ lint:
 
 test:
   stage: check
-  image: registry.gitlab.com/matrixai/engineering/maintenance/gitlab-runner
+  interruptible: true
   script:
     - >
         nix-shell -I nixpkgs=./pkgs.nix --packages nodejs --run '
         npm install;
         npm run test;
         '
-
-nix-dry:
-  stage: check
-  image: registry.gitlab.com/matrixai/engineering/maintenance/gitlab-runner
-  script:
-    - nix-build -v -v --dry-run ./release.nix --attr application
-    - nix-build -v -v --dry-run ./release.nix --attr docker
-    - nix-build -v -v --dry-run ./release.nix --attr package.linux.x64.elf
-    - nix-build -v -v --dry-run ./release.nix --attr package.windows.x64.exe
-    - nix-build -v -v --dry-run ./release.nix --attr package.macos.x64.macho
-
-nix:
-  stage: build
-  image: registry.gitlab.com/matrixai/engineering/maintenance/gitlab-runner
-  script:
-    - mkdir -p ./builds
-    # nix-specific application target
-    - >
-        build_application="$(nix-build \
-          --max-jobs "$(nproc)" --cores "$(nproc)" \
-          ./release.nix  \
-          --attr application \
-        )"
-    - >
-        nix-store --export $( \
-          nix-store --query --requisites "$build_application" \
-        ) | gzip > ./builds/typescript-demo-lib.closure.gz
-    # non-nix targets
-    - >
-        builds="$(nix-build \
-          --max-jobs "$(nproc)" --cores "$(nproc)" \
-          ./release.nix \
-          --attr docker \
-          --attr package.linux.x64.elf \
-          --attr package.windows.x64.exe \
-          --attr package.macos.x64.macho)"
-    - cp -r $builds ./builds/
-  only:
-    - master
-  artifacts:
-    paths:
-      - ./builds/
-
-application run:
-  stage: quality
-  image: registry.gitlab.com/matrixai/engineering/maintenance/gitlab-runner
-  dependencies:
-    - nix
-  script:
-    - >
-        build_application="$( \
-          gunzip -c ./builds/typescript-demo-lib.closure.gz | \
-          nix-store --import | \
-          tail -1 \
-        )"
-    - $build_application/bin/typescript-demo-lib
-  only:
-    - master
-
-docker run:
-  stage: quality
-  image: docker:20.10.11
-  dependencies:
-    - nix
-  services:
-    - docker:20.10.11-dind
-  variables:
-    DOCKER_TLS_CERTDIR: "/certs"
-  before_script:
-    - docker info
-  script:
-    - image="$(docker load --input ./builds/*docker* | cut -d' ' -f3)"
-    - docker run "$image"
-  only:
-    - master
-
-linux run:
-  stage: quality
-  image: ubuntu:latest
-  dependencies:
-    - nix
-  script:
-    - for f in ./builds/*-linux-*; do "$f"; done
-  only:
-    - master
-
-windows run:
-  stage: quality
-  dependencies:
-    - nix
-  script:
-    - Get-ChildItem -File ./builds/*-win32-* | ForEach {& $_.FullName}
-  tags:
-    - windows
-  only:
-    - master
-
-# macos is disabled until this repo has access
-# macos run:
-#   stage: quality
-#   image: macos-11-xcode-12
-#   dependencies:
-#     - nix
-#   script:
-#     - for f in ./builds/*-macos-*; do "$f"; done
-#   only:
-#     - master
-#   tags:
-#     - shared-macos-amd64
-
-packages:
-  stage: release
-  image: registry.gitlab.com/matrixai/engineering/maintenance/gitlab-runner
-  dependencies:
-    - nix
-  script:
-    - >
-        nix-shell -I nixpkgs=./pkgs.nix --packages git gitAndTools.gh --run '
-        commit="$(git rev-parse --short HEAD)";
-        gh release \
-          create "$commit" \
-          builds/*.closure.gz \
-          builds/*-linux-* \
-          builds/*-win32-* \
-          builds/*-macos-* \
-          --title "Build-$(date -u +"%Y-%m-%dT%H:%M:%SZ")" \
-          --prerelease \
-          --notes "" \
-          --repo MatrixAI/TypeScript-Demo-Lib;
-        '
-  only:
-    - master
diff --git a/README.md b/README.md
index 215e399..97b07d1 100644
--- a/README.md
+++ b/README.md
@@ -1,36 +1,13 @@
-# TypeScript-Demo-Lib
+# js-errors
 
-[![pipeline status](https://gitlab.com/MatrixAI/open-source/TypeScript-Demo-Lib/badges/master/pipeline.svg)](https://gitlab.com/MatrixAI/open-source/TypeScript-Demo-Lib/commits/master)
+[![pipeline status](https://gitlab.com/MatrixAI/open-source/js-errors/badges/master/pipeline.svg)](https://gitlab.com/MatrixAI/open-source/js-errors/commits/master)
 
-## Installation
-
-Note that JavaScript libraries are not packaged in Nix. Only JavaScript applications are.
-
-Building the package:
-
-```sh
-nix-build -E '(import ./pkgs.nix).callPackage ./default.nix {}'
-```
-
-Building the releases:
-
-```sh
-nix-build ./release.nix --attr application
-nix-build ./release.nix --attr docker
-```
-
-Install into Nix user profile:
-
-```sh
-nix-env -f ./release.nix --install --attr application
-```
+Exception system with error chaining.
 
-Install into Docker:
+## Installation
 
 ```sh
-loaded="$(docker load --input "$(nix-build ./release.nix --attr docker)")"
-image="$(cut -d' ' -f3 <<< "$loaded")"
-docker run -it "$image"
+npm install --save @matrixai/errors
 ```
 
 ## Development
@@ -52,101 +29,6 @@ npm run lint
 npm run lintfix
 ```
 
-### Calling Executables
-
-When calling executables in development, use this style:
-
-```
-npm run typescript-demo-lib -- p1 p2 p3
-```
-
-The `--` is necessary to make `npm` understand that the parameters are for your own executable, and not parameters to `npm`.
-
-### Using the REPL
-
-```
-$ npm run ts-node
-> import fs from 'fs';
-> fs
-> import { Library } from '@';
-> Library
-> import Library as Library2 from './src/lib/Library';
-```
-
-You can also create test files in `./src`, and run them with `npm run ts-node ./src/test.ts`.
-
-This allows you to test individual pieces of typescript code, and it makes it easier when doing large scale architecting of TypeScript code.
-
-### Path Aliases
-
-Due to https://github.com/microsoft/TypeScript/issues/10866, you cannot use path aliases without a bundler like Webpack to further transform the generated JavaScript code in order to resolve the path aliases. Because this is a simple library demonstration, there's no need to use a bundler. In fact, for such libraries, it is far more efficient to not bundle the code.
-
-However, we have left the path alias configuration in `tsconfig.json`, `jest.config.js` and in the tests we are making use of the `@` alias.
-
-### Native Module Toolchain
-
-There are some nuances when packaging with native modules.
-Included native modules are level witch include leveldown and utp-native.
-
-If a module is not set to public then pkg defaults to including it as bytecode.
-To avoid this breaking with the `--no-bytecode` flag we need to add `--public-packages "*"`
-
-#### leveldown
-
-To get leveldown to work with pkg we need to include the prebuilds with the executable.
-after building with pkg you need to copy from `node_modules/leveldown/prebuilds` -> `path_to_executable/prebuilds`
-You only need to include the prebuilds for the arch you are targeting. e.g. for linux-x64 you need `prebuild/linux-x64`.
-
-The folder structure for the executable should look like this.
-- linux_executable_elf
-- prebuilds
-  - linux-x64
-    - (node files)
-
-#### utp-native
-
-Including utp-native is simpler, you just need to add it as an asset for pkg.
-Add the following lines to the package.json.
-```json
-"pkg": {
-    "assets": "node_modules/utp-native/**/*"
-  }
-```
-
-#### threads.js
-
-To make sure that the worker threads work properly you need to include the compiled worker scripts as an asset.
-This can be fixed by adding the following to `package.json`
-
-```json
-"pkg": {
-    "assets": "dist/bin/worker.js"
-  }
-```
-
-If you need to include multiple assets then add them as an array.
-
-```json
-"pkg": {
-    "assets": [
-      "node_modules/utp-native/**/*",
-      "dist/bin/worker.js"
-    ]
-  }
-```
-
-#### Integration into Nix
-
-Nix build uses node2nix to create the dependencies of the node modules. this does a fairly good job of detecting dependencies but with native modules it may fail to detect CLI tools like `node-gyp-build`.
-
-To ensure the proper dependencies exist while building we need to bring in these utilities during the build:
-
-```
-buildInputs = attrs.buildInputs ++ [ nodePackages.node-gyp-build ];
-```
-
-This has to be done to both `node2nixProd` and `node2nixDev`.
-
 ### Docs Generation
 
 ```sh
diff --git a/default.nix b/default.nix
deleted file mode 100644
index 79e7317..0000000
--- a/default.nix
+++ /dev/null
@@ -1,30 +0,0 @@
-{ runCommandNoCC
-, callPackage
-}:
-
-let
-  utils = callPackage ./utils.nix {};
-  drv = runCommandNoCC
-    "${utils.basename}-${utils.node2nixDev.version}"
-    {
-      version = utils.node2nixDev.version;
-      packageName = utils.node2nixDev.packageName;
-    }
-    ''
-    mkdir -p $out/lib/node_modules/${utils.node2nixDev.packageName}
-    # copy the package.json
-    cp ${utils.node2nixDev}/lib/node_modules/${utils.node2nixDev.packageName}/package.json $out/lib/node_modules/${utils.node2nixDev.packageName}/
-    # copy the dist
-    cp -r ${utils.node2nixDev}/lib/node_modules/${utils.node2nixDev.packageName}/dist $out/lib/node_modules/${utils.node2nixDev.packageName}/
-    # copy over the production dependencies
-    if [ -d "${utils.node2nixProd}/lib/node_modules" ]; then
-      cp -r ${utils.node2nixProd}/lib/node_modules $out/lib/node_modules/${utils.node2nixDev.packageName}/
-    fi
-    # create symlink to the deployed executable folder, if applicable
-    if [ -d "${utils.node2nixDev}/lib/node_modules/.bin" ]; then
-      cp -r ${utils.node2nixDev}/lib/node_modules/.bin $out/lib/node_modules/
-      ln -s $out/lib/node_modules/.bin $out/bin
-    fi
-  '';
-in
-  drv
diff --git a/docs/.nojekyll b/docs/.nojekyll
index e69de29..e2ac661 100644
--- a/docs/.nojekyll
+++ b/docs/.nojekyll
@@ -0,0 +1 @@
+TypeDoc added this file to prevent GitHub Pages from using Jekyll. You can turn off this behavior by setting the `githubPages` option to false.
\ No newline at end of file
diff --git a/docs/assets/css/main.css b/docs/assets/css/main.css
deleted file mode 100644
index 46571c2..0000000
--- a/docs/assets/css/main.css
+++ /dev/null
@@ -1,2660 +0,0 @@
-:root {
-  --color-background: #fdfdfd;
-  --color-text: #222;
-  --color-text-aside: #707070;
-  --color-link: #4da6ff;
-  --color-menu-divider: #eee;
-  --color-menu-divider-focus: #000;
-  --color-menu-label: #707070;
-  --color-panel: #fff;
-  --color-panel-divider: #eee;
-  --color-comment-tag: #707070;
-  --color-comment-tag-text: #fff;
-  --color-code-background: rgba(0, 0, 0, 0.04);
-  --color-ts: #9600ff;
-  --color-ts-interface: #647f1b;
-  --color-ts-enum: #937210;
-  --color-ts-class: #0672de;
-  --color-ts-private: #707070;
-  --color-toolbar: #fff;
-  --color-toolbar-text: #333;
-}
-
-/*! normalize.css v1.1.3 | MIT License | git.io/normalize */
-/* ==========================================================================
- * * HTML5 display definitions
- * * ========================================================================== */
-/**
- * * Correct `block` display not defined in IE 6/7/8/9 and Firefox 3. */
-article, aside, details, figcaption, figure, footer, header, hgroup, main, nav, section, summary {
-  display: block;
-}
-
-/**
- * * Correct `inline-block` display not defined in IE 6/7/8/9 and Firefox 3. */
-audio, canvas, video {
-  display: inline-block;
-  *display: inline;
-  *zoom: 1;
-}
-
-/**
- * * Prevent modern browsers from displaying `audio` without controls.
- * * Remove excess height in iOS 5 devices. */
-audio:not([controls]) {
-  display: none;
-  height: 0;
-}
-
-/**
- * * Address styling not present in IE 7/8/9, Firefox 3, and Safari 4.
- * * Known issue: no IE 6 support. */
-[hidden] {
-  display: none;
-}
-
-/* ==========================================================================
- * * Base
- * * ========================================================================== */
-/**
- * * 1. Correct text resizing oddly in IE 6/7 when body `font-size` is set using
- * *    `em` units.
- * * 2. Prevent iOS text size adjust after orientation change, without disabling
- * *    user zoom. */
-html {
-  font-size: 100%;
-  /* 1 */
-  -ms-text-size-adjust: 100%;
-  /* 2 */
-  -webkit-text-size-adjust: 100%;
-  /* 2 */
-  font-family: sans-serif;
-}
-
-/**
- * * Address `font-family` inconsistency between `textarea` and other form
- * * elements. */
-button, input, select, textarea {
-  font-family: sans-serif;
-}
-
-/**
- * * Address margins handled incorrectly in IE 6/7. */
-body {
-  margin: 0;
-}
-
-/* ==========================================================================
- * * Links
- * * ========================================================================== */
-/**
- * * Address `outline` inconsistency between Chrome and other browsers. */
-a:focus {
-  outline: thin dotted;
-}
-a:active, a:hover {
-  outline: 0;
-}
-
-/**
- * * Improve readability when focused and also mouse hovered in all browsers. */
-/* ==========================================================================
- * * Typography
- * * ========================================================================== */
-/**
- * * Address font sizes and margins set differently in IE 6/7.
- * * Address font sizes within `section` and `article` in Firefox 4+, Safari 5,
- * * and Chrome. */
-h1 {
-  font-size: 2em;
-  margin: 0.67em 0;
-}
-
-h2 {
-  font-size: 1.5em;
-  margin: 0.83em 0;
-}
-
-h3 {
-  font-size: 1.17em;
-  margin: 1em 0;
-}
-
-h4, .tsd-index-panel h3 {
-  font-size: 1em;
-  margin: 1.33em 0;
-}
-
-h5 {
-  font-size: 0.83em;
-  margin: 1.67em 0;
-}
-
-h6 {
-  font-size: 0.67em;
-  margin: 2.33em 0;
-}
-
-/**
- * * Address styling not present in IE 7/8/9, Safari 5, and Chrome. */
-abbr[title] {
-  border-bottom: 1px dotted;
-}
-
-/**
- * * Address style set to `bolder` in Firefox 3+, Safari 4/5, and Chrome. */
-b, strong {
-  font-weight: bold;
-}
-
-blockquote {
-  margin: 1em 40px;
-}
-
-/**
- * * Address styling not present in Safari 5 and Chrome. */
-dfn {
-  font-style: italic;
-}
-
-/**
- * * Address differences between Firefox and other browsers.
- * * Known issue: no IE 6/7 normalization. */
-hr {
-  -moz-box-sizing: content-box;
-  box-sizing: content-box;
-  height: 0;
-}
-
-/**
- * * Address styling not present in IE 6/7/8/9. */
-mark {
-  background: #ff0;
-  color: #000;
-}
-
-/**
- * * Address margins set differently in IE 6/7. */
-p, pre {
-  margin: 1em 0;
-}
-
-/**
- * * Correct font family set oddly in IE 6, Safari 4/5, and Chrome. */
-code, kbd, pre, samp {
-  font-family: monospace, serif;
-  _font-family: "courier new", monospace;
-  font-size: 1em;
-}
-
-/**
- * * Improve readability of pre-formatted text in all browsers. */
-pre {
-  white-space: pre;
-  white-space: pre-wrap;
-  word-wrap: break-word;
-}
-
-/**
- * * Address CSS quotes not supported in IE 6/7. */
-q {
-  quotes: none;
-}
-q:before, q:after {
-  content: "";
-  content: none;
-}
-
-/**
- * * Address `quotes` property not supported in Safari 4. */
-/**
- * * Address inconsistent and variable font size in all browsers. */
-small {
-  font-size: 80%;
-}
-
-/**
- * * Prevent `sub` and `sup` affecting `line-height` in all browsers. */
-sub {
-  font-size: 75%;
-  line-height: 0;
-  position: relative;
-  vertical-align: baseline;
-}
-
-sup {
-  font-size: 75%;
-  line-height: 0;
-  position: relative;
-  vertical-align: baseline;
-  top: -0.5em;
-}
-
-sub {
-  bottom: -0.25em;
-}
-
-/* ==========================================================================
- * * Lists
- * * ========================================================================== */
-/**
- * * Address margins set differently in IE 6/7. */
-dl, menu, ol, ul {
-  margin: 1em 0;
-}
-
-dd {
-  margin: 0 0 0 40px;
-}
-
-/**
- * * Address paddings set differently in IE 6/7. */
-menu, ol, ul {
-  padding: 0 0 0 40px;
-}
-
-/**
- * * Correct list images handled incorrectly in IE 7. */
-nav ul, nav ol {
-  list-style: none;
-  list-style-image: none;
-}
-
-/* ==========================================================================
- * * Embedded content
- * * ========================================================================== */
-/**
- * * 1. Remove border when inside `a` element in IE 6/7/8/9 and Firefox 3.
- * * 2. Improve image quality when scaled in IE 7. */
-img {
-  border: 0;
-  /* 1 */
-  -ms-interpolation-mode: bicubic;
-}
-
-/* 2 */
-/**
- * * Correct overflow displayed oddly in IE 9. */
-svg:not(:root) {
-  overflow: hidden;
-}
-
-/* ==========================================================================
- * * Figures
- * * ========================================================================== */
-/**
- * * Address margin not present in IE 6/7/8/9, Safari 5, and Opera 11. */
-figure, form {
-  margin: 0;
-}
-
-/* ==========================================================================
- * * Forms
- * * ========================================================================== */
-/**
- * * Correct margin displayed oddly in IE 6/7. */
-/**
- * * Define consistent border, margin, and padding. */
-fieldset {
-  border: 1px solid #c0c0c0;
-  margin: 0 2px;
-  padding: 0.35em 0.625em 0.75em;
-}
-
-/**
- * * 1. Correct color not being inherited in IE 6/7/8/9.
- * * 2. Correct text not wrapping in Firefox 3.
- * * 3. Correct alignment displayed oddly in IE 6/7. */
-legend {
-  border: 0;
-  /* 1 */
-  padding: 0;
-  white-space: normal;
-  /* 2 */
-  *margin-left: -7px;
-}
-
-/* 3 */
-/**
- * * 1. Correct font size not being inherited in all browsers.
- * * 2. Address margins set differently in IE 6/7, Firefox 3+, Safari 5,
- * *    and Chrome.
- * * 3. Improve appearance and consistency in all browsers. */
-button, input, select, textarea {
-  font-size: 100%;
-  /* 1 */
-  margin: 0;
-  /* 2 */
-  vertical-align: baseline;
-  /* 3 */
-  *vertical-align: middle;
-}
-
-/* 3 */
-/**
- * * Address Firefox 3+ setting `line-height` on `input` using `!important` in
- * * the UA stylesheet. */
-button, input {
-  line-height: normal;
-}
-
-/**
- * * Address inconsistent `text-transform` inheritance for `button` and `select`.
- * * All other form control elements do not inherit `text-transform` values.
- * * Correct `button` style inheritance in Chrome, Safari 5+, and IE 6+.
- * * Correct `select` style inheritance in Firefox 4+ and Opera. */
-button, select {
-  text-transform: none;
-}
-
-/**
- * * 1. Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio`
- * *    and `video` controls.
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new file mode 100644
index 0000000..bf02e0e
--- /dev/null
+++ b/docs/assets/highlight.css
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diff --git a/docs/assets/icons.css b/docs/assets/icons.css
new file mode 100644
index 0000000..776a356
--- /dev/null
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diff --git a/docs/assets/images/icons.png b/docs/assets/icons.png
similarity index 100%
rename from docs/assets/images/icons.png
rename to docs/assets/icons.png
diff --git a/docs/assets/images/icons@2x.png b/docs/assets/icons@2x.png
similarity index 100%
rename from docs/assets/images/icons@2x.png
rename to docs/assets/icons@2x.png
diff --git a/docs/assets/js/main.js b/docs/assets/js/main.js
deleted file mode 100644
index dc257a8..0000000
--- a/docs/assets/js/main.js
+++ /dev/null
@@ -1,248 +0,0 @@
-/*
- * ATTENTION: The "eval" devtool has been used (maybe by default in mode: "development").
- * This devtool is not neither made for production nor for readable output files.
- * It uses "eval()" calls to create a separate source file in the browser devtools.
- * If you are trying to read the output file, select a different devtool (https://webpack.js.org/configuration/devtool/)
- * or disable the default devtool with "devtool: false".
- * If you are looking for production-ready output files, see mode: "production" (https://webpack.js.org/configuration/mode/).
- */
-/******/ (() => { // webpackBootstrap
-/******/ 	var __webpack_modules__ = ({
-
-/***/ "../node_modules/lunr/lunr.js":
-/*!************************************!*\
-  !*** ../node_modules/lunr/lunr.js ***!
-  \************************************/
-/***/ ((module, exports, __webpack_require__) => {
-
-eval("var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_RESULT__;/**\n * lunr - http://lunrjs.com - A bit like Solr, but much smaller and not as bright - 2.3.9\n * Copyright (C) 2020 Oliver Nightingale\n * @license MIT\n */\n\n;(function(){\n\n/**\n * A convenience function for configuring and constructing\n * a new lunr Index.\n *\n * A lunr.Builder instance is created and the pipeline setup\n * with a trimmer, stop word filter and stemmer.\n *\n * This builder object is yielded to the configuration function\n * that is passed as a parameter, allowing the list of fields\n * and other builder parameters to be customised.\n *\n * All documents _must_ be added within the passed config function.\n *\n * @example\n * var idx = lunr(function () {\n *   this.field('title')\n *   this.field('body')\n *   this.ref('id')\n *\n *   documents.forEach(function (doc) {\n *     this.add(doc)\n *   }, this)\n * })\n *\n * @see {@link lunr.Builder}\n * @see {@link lunr.Pipeline}\n * @see {@link lunr.trimmer}\n * @see {@link lunr.stopWordFilter}\n * @see {@link lunr.stemmer}\n * @namespace {function} lunr\n */\nvar lunr = function (config) {\n  var builder = new lunr.Builder\n\n  builder.pipeline.add(\n    lunr.trimmer,\n    lunr.stopWordFilter,\n    lunr.stemmer\n  )\n\n  builder.searchPipeline.add(\n    lunr.stemmer\n  )\n\n  config.call(builder, builder)\n  return builder.build()\n}\n\nlunr.version = \"2.3.9\"\n/*!\n * lunr.utils\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A namespace containing utils for the rest of the lunr library\n * @namespace lunr.utils\n */\nlunr.utils = {}\n\n/**\n * Print a warning message to the console.\n *\n * @param {String} message The message to be printed.\n * @memberOf lunr.utils\n * @function\n */\nlunr.utils.warn = (function (global) {\n  /* eslint-disable no-console */\n  return function (message) {\n    if (global.console && console.warn) {\n      console.warn(message)\n    }\n  }\n  /* eslint-enable no-console */\n})(this)\n\n/**\n * Convert an object to a string.\n *\n * In the case of `null` and `undefined` the function returns\n * the empty string, in all other cases the result of calling\n * `toString` on the passed object is returned.\n *\n * @param {Any} obj The object to convert to a string.\n * @return {String} string representation of the passed object.\n * @memberOf lunr.utils\n */\nlunr.utils.asString = function (obj) {\n  if (obj === void 0 || obj === null) {\n    return \"\"\n  } else {\n    return obj.toString()\n  }\n}\n\n/**\n * Clones an object.\n *\n * Will create a copy of an existing object such that any mutations\n * on the copy cannot affect the original.\n *\n * Only shallow objects are supported, passing a nested object to this\n * function will cause a TypeError.\n *\n * Objects with primitives, and arrays of primitives are supported.\n *\n * @param {Object} obj The object to clone.\n * @return {Object} a clone of the passed object.\n * @throws {TypeError} when a nested object is passed.\n * @memberOf Utils\n */\nlunr.utils.clone = function (obj) {\n  if (obj === null || obj === undefined) {\n    return obj\n  }\n\n  var clone = Object.create(null),\n      keys = Object.keys(obj)\n\n  for (var i = 0; i < keys.length; i++) {\n    var key = keys[i],\n        val = obj[key]\n\n    if (Array.isArray(val)) {\n      clone[key] = val.slice()\n      continue\n    }\n\n    if (typeof val === 'string' ||\n        typeof val === 'number' ||\n        typeof val === 'boolean') {\n      clone[key] = val\n      continue\n    }\n\n    throw new TypeError(\"clone is not deep and does not support nested objects\")\n  }\n\n  return clone\n}\nlunr.FieldRef = function (docRef, fieldName, stringValue) {\n  this.docRef = docRef\n  this.fieldName = fieldName\n  this._stringValue = stringValue\n}\n\nlunr.FieldRef.joiner = \"/\"\n\nlunr.FieldRef.fromString = function (s) {\n  var n = s.indexOf(lunr.FieldRef.joiner)\n\n  if (n === -1) {\n    throw \"malformed field ref string\"\n  }\n\n  var fieldRef = s.slice(0, n),\n      docRef = s.slice(n + 1)\n\n  return new lunr.FieldRef (docRef, fieldRef, s)\n}\n\nlunr.FieldRef.prototype.toString = function () {\n  if (this._stringValue == undefined) {\n    this._stringValue = this.fieldName + lunr.FieldRef.joiner + this.docRef\n  }\n\n  return this._stringValue\n}\n/*!\n * lunr.Set\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A lunr set.\n *\n * @constructor\n */\nlunr.Set = function (elements) {\n  this.elements = Object.create(null)\n\n  if (elements) {\n    this.length = elements.length\n\n    for (var i = 0; i < this.length; i++) {\n      this.elements[elements[i]] = true\n    }\n  } else {\n    this.length = 0\n  }\n}\n\n/**\n * A complete set that contains all elements.\n *\n * @static\n * @readonly\n * @type {lunr.Set}\n */\nlunr.Set.complete = {\n  intersect: function (other) {\n    return other\n  },\n\n  union: function () {\n    return this\n  },\n\n  contains: function () {\n    return true\n  }\n}\n\n/**\n * An empty set that contains no elements.\n *\n * @static\n * @readonly\n * @type {lunr.Set}\n */\nlunr.Set.empty = {\n  intersect: function () {\n    return this\n  },\n\n  union: function (other) {\n    return other\n  },\n\n  contains: function () {\n    return false\n  }\n}\n\n/**\n * Returns true if this set contains the specified object.\n *\n * @param {object} object - Object whose presence in this set is to be tested.\n * @returns {boolean} - True if this set contains the specified object.\n */\nlunr.Set.prototype.contains = function (object) {\n  return !!this.elements[object]\n}\n\n/**\n * Returns a new set containing only the elements that are present in both\n * this set and the specified set.\n *\n * @param {lunr.Set} other - set to intersect with this set.\n * @returns {lunr.Set} a new set that is the intersection of this and the specified set.\n */\n\nlunr.Set.prototype.intersect = function (other) {\n  var a, b, elements, intersection = []\n\n  if (other === lunr.Set.complete) {\n    return this\n  }\n\n  if (other === lunr.Set.empty) {\n    return other\n  }\n\n  if (this.length < other.length) {\n    a = this\n    b = other\n  } else {\n    a = other\n    b = this\n  }\n\n  elements = Object.keys(a.elements)\n\n  for (var i = 0; i < elements.length; i++) {\n    var element = elements[i]\n    if (element in b.elements) {\n      intersection.push(element)\n    }\n  }\n\n  return new lunr.Set (intersection)\n}\n\n/**\n * Returns a new set combining the elements of this and the specified set.\n *\n * @param {lunr.Set} other - set to union with this set.\n * @return {lunr.Set} a new set that is the union of this and the specified set.\n */\n\nlunr.Set.prototype.union = function (other) {\n  if (other === lunr.Set.complete) {\n    return lunr.Set.complete\n  }\n\n  if (other === lunr.Set.empty) {\n    return this\n  }\n\n  return new lunr.Set(Object.keys(this.elements).concat(Object.keys(other.elements)))\n}\n/**\n * A function to calculate the inverse document frequency for\n * a posting. This is shared between the builder and the index\n *\n * @private\n * @param {object} posting - The posting for a given term\n * @param {number} documentCount - The total number of documents.\n */\nlunr.idf = function (posting, documentCount) {\n  var documentsWithTerm = 0\n\n  for (var fieldName in posting) {\n    if (fieldName == '_index') continue // Ignore the term index, its not a field\n    documentsWithTerm += Object.keys(posting[fieldName]).length\n  }\n\n  var x = (documentCount - documentsWithTerm + 0.5) / (documentsWithTerm + 0.5)\n\n  return Math.log(1 + Math.abs(x))\n}\n\n/**\n * A token wraps a string representation of a token\n * as it is passed through the text processing pipeline.\n *\n * @constructor\n * @param {string} [str=''] - The string token being wrapped.\n * @param {object} [metadata={}] - Metadata associated with this token.\n */\nlunr.Token = function (str, metadata) {\n  this.str = str || \"\"\n  this.metadata = metadata || {}\n}\n\n/**\n * Returns the token string that is being wrapped by this object.\n *\n * @returns {string}\n */\nlunr.Token.prototype.toString = function () {\n  return this.str\n}\n\n/**\n * A token update function is used when updating or optionally\n * when cloning a token.\n *\n * @callback lunr.Token~updateFunction\n * @param {string} str - The string representation of the token.\n * @param {Object} metadata - All metadata associated with this token.\n */\n\n/**\n * Applies the given function to the wrapped string token.\n *\n * @example\n * token.update(function (str, metadata) {\n *   return str.toUpperCase()\n * })\n *\n * @param {lunr.Token~updateFunction} fn - A function to apply to the token string.\n * @returns {lunr.Token}\n */\nlunr.Token.prototype.update = function (fn) {\n  this.str = fn(this.str, this.metadata)\n  return this\n}\n\n/**\n * Creates a clone of this token. Optionally a function can be\n * applied to the cloned token.\n *\n * @param {lunr.Token~updateFunction} [fn] - An optional function to apply to the cloned token.\n * @returns {lunr.Token}\n */\nlunr.Token.prototype.clone = function (fn) {\n  fn = fn || function (s) { return s }\n  return new lunr.Token (fn(this.str, this.metadata), this.metadata)\n}\n/*!\n * lunr.tokenizer\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A function for splitting a string into tokens ready to be inserted into\n * the search index. Uses `lunr.tokenizer.separator` to split strings, change\n * the value of this property to change how strings are split into tokens.\n *\n * This tokenizer will convert its parameter to a string by calling `toString` and\n * then will split this string on the character in `lunr.tokenizer.separator`.\n * Arrays will have their elements converted to strings and wrapped in a lunr.Token.\n *\n * Optional metadata can be passed to the tokenizer, this metadata will be cloned and\n * added as metadata to every token that is created from the object to be tokenized.\n *\n * @static\n * @param {?(string|object|object[])} obj - The object to convert into tokens\n * @param {?object} metadata - Optional metadata to associate with every token\n * @returns {lunr.Token[]}\n * @see {@link lunr.Pipeline}\n */\nlunr.tokenizer = function (obj, metadata) {\n  if (obj == null || obj == undefined) {\n    return []\n  }\n\n  if (Array.isArray(obj)) {\n    return obj.map(function (t) {\n      return new lunr.Token(\n        lunr.utils.asString(t).toLowerCase(),\n        lunr.utils.clone(metadata)\n      )\n    })\n  }\n\n  var str = obj.toString().toLowerCase(),\n      len = str.length,\n      tokens = []\n\n  for (var sliceEnd = 0, sliceStart = 0; sliceEnd <= len; sliceEnd++) {\n    var char = str.charAt(sliceEnd),\n        sliceLength = sliceEnd - sliceStart\n\n    if ((char.match(lunr.tokenizer.separator) || sliceEnd == len)) {\n\n      if (sliceLength > 0) {\n        var tokenMetadata = lunr.utils.clone(metadata) || {}\n        tokenMetadata[\"position\"] = [sliceStart, sliceLength]\n        tokenMetadata[\"index\"] = tokens.length\n\n        tokens.push(\n          new lunr.Token (\n            str.slice(sliceStart, sliceEnd),\n            tokenMetadata\n          )\n        )\n      }\n\n      sliceStart = sliceEnd + 1\n    }\n\n  }\n\n  return tokens\n}\n\n/**\n * The separator used to split a string into tokens. Override this property to change the behaviour of\n * `lunr.tokenizer` behaviour when tokenizing strings. By default this splits on whitespace and hyphens.\n *\n * @static\n * @see lunr.tokenizer\n */\nlunr.tokenizer.separator = /[\\s\\-]+/\n/*!\n * lunr.Pipeline\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * lunr.Pipelines maintain an ordered list of functions to be applied to all\n * tokens in documents entering the search index and queries being ran against\n * the index.\n *\n * An instance of lunr.Index created with the lunr shortcut will contain a\n * pipeline with a stop word filter and an English language stemmer. Extra\n * functions can be added before or after either of these functions or these\n * default functions can be removed.\n *\n * When run the pipeline will call each function in turn, passing a token, the\n * index of that token in the original list of all tokens and finally a list of\n * all the original tokens.\n *\n * The output of functions in the pipeline will be passed to the next function\n * in the pipeline. To exclude a token from entering the index the function\n * should return undefined, the rest of the pipeline will not be called with\n * this token.\n *\n * For serialisation of pipelines to work, all functions used in an instance of\n * a pipeline should be registered with lunr.Pipeline. Registered functions can\n * then be loaded. If trying to load a serialised pipeline that uses functions\n * that are not registered an error will be thrown.\n *\n * If not planning on serialising the pipeline then registering pipeline functions\n * is not necessary.\n *\n * @constructor\n */\nlunr.Pipeline = function () {\n  this._stack = []\n}\n\nlunr.Pipeline.registeredFunctions = Object.create(null)\n\n/**\n * A pipeline function maps lunr.Token to lunr.Token. A lunr.Token contains the token\n * string as well as all known metadata. A pipeline function can mutate the token string\n * or mutate (or add) metadata for a given token.\n *\n * A pipeline function can indicate that the passed token should be discarded by returning\n * null, undefined or an empty string. This token will not be passed to any downstream pipeline\n * functions and will not be added to the index.\n *\n * Multiple tokens can be returned by returning an array of tokens. Each token will be passed\n * to any downstream pipeline functions and all will returned tokens will be added to the index.\n *\n * Any number of pipeline functions may be chained together using a lunr.Pipeline.\n *\n * @interface lunr.PipelineFunction\n * @param {lunr.Token} token - A token from the document being processed.\n * @param {number} i - The index of this token in the complete list of tokens for this document/field.\n * @param {lunr.Token[]} tokens - All tokens for this document/field.\n * @returns {(?lunr.Token|lunr.Token[])}\n */\n\n/**\n * Register a function with the pipeline.\n *\n * Functions that are used in the pipeline should be registered if the pipeline\n * needs to be serialised, or a serialised pipeline needs to be loaded.\n *\n * Registering a function does not add it to a pipeline, functions must still be\n * added to instances of the pipeline for them to be used when running a pipeline.\n *\n * @param {lunr.PipelineFunction} fn - The function to check for.\n * @param {String} label - The label to register this function with\n */\nlunr.Pipeline.registerFunction = function (fn, label) {\n  if (label in this.registeredFunctions) {\n    lunr.utils.warn('Overwriting existing registered function: ' + label)\n  }\n\n  fn.label = label\n  lunr.Pipeline.registeredFunctions[fn.label] = fn\n}\n\n/**\n * Warns if the function is not registered as a Pipeline function.\n *\n * @param {lunr.PipelineFunction} fn - The function to check for.\n * @private\n */\nlunr.Pipeline.warnIfFunctionNotRegistered = function (fn) {\n  var isRegistered = fn.label && (fn.label in this.registeredFunctions)\n\n  if (!isRegistered) {\n    lunr.utils.warn('Function is not registered with pipeline. This may cause problems when serialising the index.\\n', fn)\n  }\n}\n\n/**\n * Loads a previously serialised pipeline.\n *\n * All functions to be loaded must already be registered with lunr.Pipeline.\n * If any function from the serialised data has not been registered then an\n * error will be thrown.\n *\n * @param {Object} serialised - The serialised pipeline to load.\n * @returns {lunr.Pipeline}\n */\nlunr.Pipeline.load = function (serialised) {\n  var pipeline = new lunr.Pipeline\n\n  serialised.forEach(function (fnName) {\n    var fn = lunr.Pipeline.registeredFunctions[fnName]\n\n    if (fn) {\n      pipeline.add(fn)\n    } else {\n      throw new Error('Cannot load unregistered function: ' + fnName)\n    }\n  })\n\n  return pipeline\n}\n\n/**\n * Adds new functions to the end of the pipeline.\n *\n * Logs a warning if the function has not been registered.\n *\n * @param {lunr.PipelineFunction[]} functions - Any number of functions to add to the pipeline.\n */\nlunr.Pipeline.prototype.add = function () {\n  var fns = Array.prototype.slice.call(arguments)\n\n  fns.forEach(function (fn) {\n    lunr.Pipeline.warnIfFunctionNotRegistered(fn)\n    this._stack.push(fn)\n  }, this)\n}\n\n/**\n * Adds a single function after a function that already exists in the\n * pipeline.\n *\n * Logs a warning if the function has not been registered.\n *\n * @param {lunr.PipelineFunction} existingFn - A function that already exists in the pipeline.\n * @param {lunr.PipelineFunction} newFn - The new function to add to the pipeline.\n */\nlunr.Pipeline.prototype.after = function (existingFn, newFn) {\n  lunr.Pipeline.warnIfFunctionNotRegistered(newFn)\n\n  var pos = this._stack.indexOf(existingFn)\n  if (pos == -1) {\n    throw new Error('Cannot find existingFn')\n  }\n\n  pos = pos + 1\n  this._stack.splice(pos, 0, newFn)\n}\n\n/**\n * Adds a single function before a function that already exists in the\n * pipeline.\n *\n * Logs a warning if the function has not been registered.\n *\n * @param {lunr.PipelineFunction} existingFn - A function that already exists in the pipeline.\n * @param {lunr.PipelineFunction} newFn - The new function to add to the pipeline.\n */\nlunr.Pipeline.prototype.before = function (existingFn, newFn) {\n  lunr.Pipeline.warnIfFunctionNotRegistered(newFn)\n\n  var pos = this._stack.indexOf(existingFn)\n  if (pos == -1) {\n    throw new Error('Cannot find existingFn')\n  }\n\n  this._stack.splice(pos, 0, newFn)\n}\n\n/**\n * Removes a function from the pipeline.\n *\n * @param {lunr.PipelineFunction} fn The function to remove from the pipeline.\n */\nlunr.Pipeline.prototype.remove = function (fn) {\n  var pos = this._stack.indexOf(fn)\n  if (pos == -1) {\n    return\n  }\n\n  this._stack.splice(pos, 1)\n}\n\n/**\n * Runs the current list of functions that make up the pipeline against the\n * passed tokens.\n *\n * @param {Array} tokens The tokens to run through the pipeline.\n * @returns {Array}\n */\nlunr.Pipeline.prototype.run = function (tokens) {\n  var stackLength = this._stack.length\n\n  for (var i = 0; i < stackLength; i++) {\n    var fn = this._stack[i]\n    var memo = []\n\n    for (var j = 0; j < tokens.length; j++) {\n      var result = fn(tokens[j], j, tokens)\n\n      if (result === null || result === void 0 || result === '') continue\n\n      if (Array.isArray(result)) {\n        for (var k = 0; k < result.length; k++) {\n          memo.push(result[k])\n        }\n      } else {\n        memo.push(result)\n      }\n    }\n\n    tokens = memo\n  }\n\n  return tokens\n}\n\n/**\n * Convenience method for passing a string through a pipeline and getting\n * strings out. This method takes care of wrapping the passed string in a\n * token and mapping the resulting tokens back to strings.\n *\n * @param {string} str - The string to pass through the pipeline.\n * @param {?object} metadata - Optional metadata to associate with the token\n * passed to the pipeline.\n * @returns {string[]}\n */\nlunr.Pipeline.prototype.runString = function (str, metadata) {\n  var token = new lunr.Token (str, metadata)\n\n  return this.run([token]).map(function (t) {\n    return t.toString()\n  })\n}\n\n/**\n * Resets the pipeline by removing any existing processors.\n *\n */\nlunr.Pipeline.prototype.reset = function () {\n  this._stack = []\n}\n\n/**\n * Returns a representation of the pipeline ready for serialisation.\n *\n * Logs a warning if the function has not been registered.\n *\n * @returns {Array}\n */\nlunr.Pipeline.prototype.toJSON = function () {\n  return this._stack.map(function (fn) {\n    lunr.Pipeline.warnIfFunctionNotRegistered(fn)\n\n    return fn.label\n  })\n}\n/*!\n * lunr.Vector\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A vector is used to construct the vector space of documents and queries. These\n * vectors support operations to determine the similarity between two documents or\n * a document and a query.\n *\n * Normally no parameters are required for initializing a vector, but in the case of\n * loading a previously dumped vector the raw elements can be provided to the constructor.\n *\n * For performance reasons vectors are implemented with a flat array, where an elements\n * index is immediately followed by its value. E.g. [index, value, index, value]. This\n * allows the underlying array to be as sparse as possible and still offer decent\n * performance when being used for vector calculations.\n *\n * @constructor\n * @param {Number[]} [elements] - The flat list of element index and element value pairs.\n */\nlunr.Vector = function (elements) {\n  this._magnitude = 0\n  this.elements = elements || []\n}\n\n\n/**\n * Calculates the position within the vector to insert a given index.\n *\n * This is used internally by insert and upsert. If there are duplicate indexes then\n * the position is returned as if the value for that index were to be updated, but it\n * is the callers responsibility to check whether there is a duplicate at that index\n *\n * @param {Number} insertIdx - The index at which the element should be inserted.\n * @returns {Number}\n */\nlunr.Vector.prototype.positionForIndex = function (index) {\n  // For an empty vector the tuple can be inserted at the beginning\n  if (this.elements.length == 0) {\n    return 0\n  }\n\n  var start = 0,\n      end = this.elements.length / 2,\n      sliceLength = end - start,\n      pivotPoint = Math.floor(sliceLength / 2),\n      pivotIndex = this.elements[pivotPoint * 2]\n\n  while (sliceLength > 1) {\n    if (pivotIndex < index) {\n      start = pivotPoint\n    }\n\n    if (pivotIndex > index) {\n      end = pivotPoint\n    }\n\n    if (pivotIndex == index) {\n      break\n    }\n\n    sliceLength = end - start\n    pivotPoint = start + Math.floor(sliceLength / 2)\n    pivotIndex = this.elements[pivotPoint * 2]\n  }\n\n  if (pivotIndex == index) {\n    return pivotPoint * 2\n  }\n\n  if (pivotIndex > index) {\n    return pivotPoint * 2\n  }\n\n  if (pivotIndex < index) {\n    return (pivotPoint + 1) * 2\n  }\n}\n\n/**\n * Inserts an element at an index within the vector.\n *\n * Does not allow duplicates, will throw an error if there is already an entry\n * for this index.\n *\n * @param {Number} insertIdx - The index at which the element should be inserted.\n * @param {Number} val - The value to be inserted into the vector.\n */\nlunr.Vector.prototype.insert = function (insertIdx, val) {\n  this.upsert(insertIdx, val, function () {\n    throw \"duplicate index\"\n  })\n}\n\n/**\n * Inserts or updates an existing index within the vector.\n *\n * @param {Number} insertIdx - The index at which the element should be inserted.\n * @param {Number} val - The value to be inserted into the vector.\n * @param {function} fn - A function that is called for updates, the existing value and the\n * requested value are passed as arguments\n */\nlunr.Vector.prototype.upsert = function (insertIdx, val, fn) {\n  this._magnitude = 0\n  var position = this.positionForIndex(insertIdx)\n\n  if (this.elements[position] == insertIdx) {\n    this.elements[position + 1] = fn(this.elements[position + 1], val)\n  } else {\n    this.elements.splice(position, 0, insertIdx, val)\n  }\n}\n\n/**\n * Calculates the magnitude of this vector.\n *\n * @returns {Number}\n */\nlunr.Vector.prototype.magnitude = function () {\n  if (this._magnitude) return this._magnitude\n\n  var sumOfSquares = 0,\n      elementsLength = this.elements.length\n\n  for (var i = 1; i < elementsLength; i += 2) {\n    var val = this.elements[i]\n    sumOfSquares += val * val\n  }\n\n  return this._magnitude = Math.sqrt(sumOfSquares)\n}\n\n/**\n * Calculates the dot product of this vector and another vector.\n *\n * @param {lunr.Vector} otherVector - The vector to compute the dot product with.\n * @returns {Number}\n */\nlunr.Vector.prototype.dot = function (otherVector) {\n  var dotProduct = 0,\n      a = this.elements, b = otherVector.elements,\n      aLen = a.length, bLen = b.length,\n      aVal = 0, bVal = 0,\n      i = 0, j = 0\n\n  while (i < aLen && j < bLen) {\n    aVal = a[i], bVal = b[j]\n    if (aVal < bVal) {\n      i += 2\n    } else if (aVal > bVal) {\n      j += 2\n    } else if (aVal == bVal) {\n      dotProduct += a[i + 1] * b[j + 1]\n      i += 2\n      j += 2\n    }\n  }\n\n  return dotProduct\n}\n\n/**\n * Calculates the similarity between this vector and another vector.\n *\n * @param {lunr.Vector} otherVector - The other vector to calculate the\n * similarity with.\n * @returns {Number}\n */\nlunr.Vector.prototype.similarity = function (otherVector) {\n  return this.dot(otherVector) / this.magnitude() || 0\n}\n\n/**\n * Converts the vector to an array of the elements within the vector.\n *\n * @returns {Number[]}\n */\nlunr.Vector.prototype.toArray = function () {\n  var output = new Array (this.elements.length / 2)\n\n  for (var i = 1, j = 0; i < this.elements.length; i += 2, j++) {\n    output[j] = this.elements[i]\n  }\n\n  return output\n}\n\n/**\n * A JSON serializable representation of the vector.\n *\n * @returns {Number[]}\n */\nlunr.Vector.prototype.toJSON = function () {\n  return this.elements\n}\n/* eslint-disable */\n/*!\n * lunr.stemmer\n * Copyright (C) 2020 Oliver Nightingale\n * Includes code from - http://tartarus.org/~martin/PorterStemmer/js.txt\n */\n\n/**\n * lunr.stemmer is an english language stemmer, this is a JavaScript\n * implementation of the PorterStemmer taken from http://tartarus.org/~martin\n *\n * @static\n * @implements {lunr.PipelineFunction}\n * @param {lunr.Token} token - The string to stem\n * @returns {lunr.Token}\n * @see {@link lunr.Pipeline}\n * @function\n */\nlunr.stemmer = (function(){\n  var step2list = {\n      \"ational\" : \"ate\",\n      \"tional\" : \"tion\",\n      \"enci\" : \"ence\",\n      \"anci\" : \"ance\",\n      \"izer\" : \"ize\",\n      \"bli\" : \"ble\",\n      \"alli\" : \"al\",\n      \"entli\" : \"ent\",\n      \"eli\" : \"e\",\n      \"ousli\" : \"ous\",\n      \"ization\" : \"ize\",\n      \"ation\" : \"ate\",\n      \"ator\" : \"ate\",\n      \"alism\" : \"al\",\n      \"iveness\" : \"ive\",\n      \"fulness\" : \"ful\",\n      \"ousness\" : \"ous\",\n      \"aliti\" : \"al\",\n      \"iviti\" : \"ive\",\n      \"biliti\" : \"ble\",\n      \"logi\" : \"log\"\n    },\n\n    step3list = {\n      \"icate\" : \"ic\",\n      \"ative\" : \"\",\n      \"alize\" : \"al\",\n      \"iciti\" : \"ic\",\n      \"ical\" : \"ic\",\n      \"ful\" : \"\",\n      \"ness\" : \"\"\n    },\n\n    c = \"[^aeiou]\",          // consonant\n    v = \"[aeiouy]\",          // vowel\n    C = c + \"[^aeiouy]*\",    // consonant sequence\n    V = v + \"[aeiou]*\",      // vowel sequence\n\n    mgr0 = \"^(\" + C + \")?\" + V + C,               // [C]VC... is m>0\n    meq1 = \"^(\" + C + \")?\" + V + C + \"(\" + V + \")?$\",  // [C]VC[V] is m=1\n    mgr1 = \"^(\" + C + \")?\" + V + C + V + C,       // [C]VCVC... is m>1\n    s_v = \"^(\" + C + \")?\" + v;                   // vowel in stem\n\n  var re_mgr0 = new RegExp(mgr0);\n  var re_mgr1 = new RegExp(mgr1);\n  var re_meq1 = new RegExp(meq1);\n  var re_s_v = new RegExp(s_v);\n\n  var re_1a = /^(.+?)(ss|i)es$/;\n  var re2_1a = /^(.+?)([^s])s$/;\n  var re_1b = /^(.+?)eed$/;\n  var re2_1b = /^(.+?)(ed|ing)$/;\n  var re_1b_2 = /.$/;\n  var re2_1b_2 = /(at|bl|iz)$/;\n  var re3_1b_2 = new RegExp(\"([^aeiouylsz])\\\\1$\");\n  var re4_1b_2 = new RegExp(\"^\" + C + v + \"[^aeiouwxy]$\");\n\n  var re_1c = /^(.+?[^aeiou])y$/;\n  var re_2 = /^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/;\n\n  var re_3 = /^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/;\n\n  var re_4 = /^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/;\n  var re2_4 = /^(.+?)(s|t)(ion)$/;\n\n  var re_5 = /^(.+?)e$/;\n  var re_5_1 = /ll$/;\n  var re3_5 = new RegExp(\"^\" + C + v + \"[^aeiouwxy]$\");\n\n  var porterStemmer = function porterStemmer(w) {\n    var stem,\n      suffix,\n      firstch,\n      re,\n      re2,\n      re3,\n      re4;\n\n    if (w.length < 3) { return w; }\n\n    firstch = w.substr(0,1);\n    if (firstch == \"y\") {\n      w = firstch.toUpperCase() + w.substr(1);\n    }\n\n    // Step 1a\n    re = re_1a\n    re2 = re2_1a;\n\n    if (re.test(w)) { w = w.replace(re,\"$1$2\"); }\n    else if (re2.test(w)) { w = w.replace(re2,\"$1$2\"); }\n\n    // Step 1b\n    re = re_1b;\n    re2 = re2_1b;\n    if (re.test(w)) {\n      var fp = re.exec(w);\n      re = re_mgr0;\n      if (re.test(fp[1])) {\n        re = re_1b_2;\n        w = w.replace(re,\"\");\n      }\n    } else if (re2.test(w)) {\n      var fp = re2.exec(w);\n      stem = fp[1];\n      re2 = re_s_v;\n      if (re2.test(stem)) {\n        w = stem;\n        re2 = re2_1b_2;\n        re3 = re3_1b_2;\n        re4 = re4_1b_2;\n        if (re2.test(w)) { w = w + \"e\"; }\n        else if (re3.test(w)) { re = re_1b_2; w = w.replace(re,\"\"); }\n        else if (re4.test(w)) { w = w + \"e\"; }\n      }\n    }\n\n    // Step 1c - replace suffix y or Y by i if preceded by a non-vowel which is not the first letter of the word (so cry -> cri, by -> by, say -> say)\n    re = re_1c;\n    if (re.test(w)) {\n      var fp = re.exec(w);\n      stem = fp[1];\n      w = stem + \"i\";\n    }\n\n    // Step 2\n    re = re_2;\n    if (re.test(w)) {\n      var fp = re.exec(w);\n      stem = fp[1];\n      suffix = fp[2];\n      re = re_mgr0;\n      if (re.test(stem)) {\n        w = stem + step2list[suffix];\n      }\n    }\n\n    // Step 3\n    re = re_3;\n    if (re.test(w)) {\n      var fp = re.exec(w);\n      stem = fp[1];\n      suffix = fp[2];\n      re = re_mgr0;\n      if (re.test(stem)) {\n        w = stem + step3list[suffix];\n      }\n    }\n\n    // Step 4\n    re = re_4;\n    re2 = re2_4;\n    if (re.test(w)) {\n      var fp = re.exec(w);\n      stem = fp[1];\n      re = re_mgr1;\n      if (re.test(stem)) {\n        w = stem;\n      }\n    } else if (re2.test(w)) {\n      var fp = re2.exec(w);\n      stem = fp[1] + fp[2];\n      re2 = re_mgr1;\n      if (re2.test(stem)) {\n        w = stem;\n      }\n    }\n\n    // Step 5\n    re = re_5;\n    if (re.test(w)) {\n      var fp = re.exec(w);\n      stem = fp[1];\n      re = re_mgr1;\n      re2 = re_meq1;\n      re3 = re3_5;\n      if (re.test(stem) || (re2.test(stem) && !(re3.test(stem)))) {\n        w = stem;\n      }\n    }\n\n    re = re_5_1;\n    re2 = re_mgr1;\n    if (re.test(w) && re2.test(w)) {\n      re = re_1b_2;\n      w = w.replace(re,\"\");\n    }\n\n    // and turn initial Y back to y\n\n    if (firstch == \"y\") {\n      w = firstch.toLowerCase() + w.substr(1);\n    }\n\n    return w;\n  };\n\n  return function (token) {\n    return token.update(porterStemmer);\n  }\n})();\n\nlunr.Pipeline.registerFunction(lunr.stemmer, 'stemmer')\n/*!\n * lunr.stopWordFilter\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * lunr.generateStopWordFilter builds a stopWordFilter function from the provided\n * list of stop words.\n *\n * The built in lunr.stopWordFilter is built using this generator and can be used\n * to generate custom stopWordFilters for applications or non English languages.\n *\n * @function\n * @param {Array} token The token to pass through the filter\n * @returns {lunr.PipelineFunction}\n * @see lunr.Pipeline\n * @see lunr.stopWordFilter\n */\nlunr.generateStopWordFilter = function (stopWords) {\n  var words = stopWords.reduce(function (memo, stopWord) {\n    memo[stopWord] = stopWord\n    return memo\n  }, {})\n\n  return function (token) {\n    if (token && words[token.toString()] !== token.toString()) return token\n  }\n}\n\n/**\n * lunr.stopWordFilter is an English language stop word list filter, any words\n * contained in the list will not be passed through the filter.\n *\n * This is intended to be used in the Pipeline. If the token does not pass the\n * filter then undefined will be returned.\n *\n * @function\n * @implements {lunr.PipelineFunction}\n * @params {lunr.Token} token - A token to check for being a stop word.\n * @returns {lunr.Token}\n * @see {@link lunr.Pipeline}\n */\nlunr.stopWordFilter = lunr.generateStopWordFilter([\n  'a',\n  'able',\n  'about',\n  'across',\n  'after',\n  'all',\n  'almost',\n  'also',\n  'am',\n  'among',\n  'an',\n  'and',\n  'any',\n  'are',\n  'as',\n  'at',\n  'be',\n  'because',\n  'been',\n  'but',\n  'by',\n  'can',\n  'cannot',\n  'could',\n  'dear',\n  'did',\n  'do',\n  'does',\n  'either',\n  'else',\n  'ever',\n  'every',\n  'for',\n  'from',\n  'get',\n  'got',\n  'had',\n  'has',\n  'have',\n  'he',\n  'her',\n  'hers',\n  'him',\n  'his',\n  'how',\n  'however',\n  'i',\n  'if',\n  'in',\n  'into',\n  'is',\n  'it',\n  'its',\n  'just',\n  'least',\n  'let',\n  'like',\n  'likely',\n  'may',\n  'me',\n  'might',\n  'most',\n  'must',\n  'my',\n  'neither',\n  'no',\n  'nor',\n  'not',\n  'of',\n  'off',\n  'often',\n  'on',\n  'only',\n  'or',\n  'other',\n  'our',\n  'own',\n  'rather',\n  'said',\n  'say',\n  'says',\n  'she',\n  'should',\n  'since',\n  'so',\n  'some',\n  'than',\n  'that',\n  'the',\n  'their',\n  'them',\n  'then',\n  'there',\n  'these',\n  'they',\n  'this',\n  'tis',\n  'to',\n  'too',\n  'twas',\n  'us',\n  'wants',\n  'was',\n  'we',\n  'were',\n  'what',\n  'when',\n  'where',\n  'which',\n  'while',\n  'who',\n  'whom',\n  'why',\n  'will',\n  'with',\n  'would',\n  'yet',\n  'you',\n  'your'\n])\n\nlunr.Pipeline.registerFunction(lunr.stopWordFilter, 'stopWordFilter')\n/*!\n * lunr.trimmer\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * lunr.trimmer is a pipeline function for trimming non word\n * characters from the beginning and end of tokens before they\n * enter the index.\n *\n * This implementation may not work correctly for non latin\n * characters and should either be removed or adapted for use\n * with languages with non-latin characters.\n *\n * @static\n * @implements {lunr.PipelineFunction}\n * @param {lunr.Token} token The token to pass through the filter\n * @returns {lunr.Token}\n * @see lunr.Pipeline\n */\nlunr.trimmer = function (token) {\n  return token.update(function (s) {\n    return s.replace(/^\\W+/, '').replace(/\\W+$/, '')\n  })\n}\n\nlunr.Pipeline.registerFunction(lunr.trimmer, 'trimmer')\n/*!\n * lunr.TokenSet\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * A token set is used to store the unique list of all tokens\n * within an index. Token sets are also used to represent an\n * incoming query to the index, this query token set and index\n * token set are then intersected to find which tokens to look\n * up in the inverted index.\n *\n * A token set can hold multiple tokens, as in the case of the\n * index token set, or it can hold a single token as in the\n * case of a simple query token set.\n *\n * Additionally token sets are used to perform wildcard matching.\n * Leading, contained and trailing wildcards are supported, and\n * from this edit distance matching can also be provided.\n *\n * Token sets are implemented as a minimal finite state automata,\n * where both common prefixes and suffixes are shared between tokens.\n * This helps to reduce the space used for storing the token set.\n *\n * @constructor\n */\nlunr.TokenSet = function () {\n  this.final = false\n  this.edges = {}\n  this.id = lunr.TokenSet._nextId\n  lunr.TokenSet._nextId += 1\n}\n\n/**\n * Keeps track of the next, auto increment, identifier to assign\n * to a new tokenSet.\n *\n * TokenSets require a unique identifier to be correctly minimised.\n *\n * @private\n */\nlunr.TokenSet._nextId = 1\n\n/**\n * Creates a TokenSet instance from the given sorted array of words.\n *\n * @param {String[]} arr - A sorted array of strings to create the set from.\n * @returns {lunr.TokenSet}\n * @throws Will throw an error if the input array is not sorted.\n */\nlunr.TokenSet.fromArray = function (arr) {\n  var builder = new lunr.TokenSet.Builder\n\n  for (var i = 0, len = arr.length; i < len; i++) {\n    builder.insert(arr[i])\n  }\n\n  builder.finish()\n  return builder.root\n}\n\n/**\n * Creates a token set from a query clause.\n *\n * @private\n * @param {Object} clause - A single clause from lunr.Query.\n * @param {string} clause.term - The query clause term.\n * @param {number} [clause.editDistance] - The optional edit distance for the term.\n * @returns {lunr.TokenSet}\n */\nlunr.TokenSet.fromClause = function (clause) {\n  if ('editDistance' in clause) {\n    return lunr.TokenSet.fromFuzzyString(clause.term, clause.editDistance)\n  } else {\n    return lunr.TokenSet.fromString(clause.term)\n  }\n}\n\n/**\n * Creates a token set representing a single string with a specified\n * edit distance.\n *\n * Insertions, deletions, substitutions and transpositions are each\n * treated as an edit distance of 1.\n *\n * Increasing the allowed edit distance will have a dramatic impact\n * on the performance of both creating and intersecting these TokenSets.\n * It is advised to keep the edit distance less than 3.\n *\n * @param {string} str - The string to create the token set from.\n * @param {number} editDistance - The allowed edit distance to match.\n * @returns {lunr.Vector}\n */\nlunr.TokenSet.fromFuzzyString = function (str, editDistance) {\n  var root = new lunr.TokenSet\n\n  var stack = [{\n    node: root,\n    editsRemaining: editDistance,\n    str: str\n  }]\n\n  while (stack.length) {\n    var frame = stack.pop()\n\n    // no edit\n    if (frame.str.length > 0) {\n      var char = frame.str.charAt(0),\n          noEditNode\n\n      if (char in frame.node.edges) {\n        noEditNode = frame.node.edges[char]\n      } else {\n        noEditNode = new lunr.TokenSet\n        frame.node.edges[char] = noEditNode\n      }\n\n      if (frame.str.length == 1) {\n        noEditNode.final = true\n      }\n\n      stack.push({\n        node: noEditNode,\n        editsRemaining: frame.editsRemaining,\n        str: frame.str.slice(1)\n      })\n    }\n\n    if (frame.editsRemaining == 0) {\n      continue\n    }\n\n    // insertion\n    if (\"*\" in frame.node.edges) {\n      var insertionNode = frame.node.edges[\"*\"]\n    } else {\n      var insertionNode = new lunr.TokenSet\n      frame.node.edges[\"*\"] = insertionNode\n    }\n\n    if (frame.str.length == 0) {\n      insertionNode.final = true\n    }\n\n    stack.push({\n      node: insertionNode,\n      editsRemaining: frame.editsRemaining - 1,\n      str: frame.str\n    })\n\n    // deletion\n    // can only do a deletion if we have enough edits remaining\n    // and if there are characters left to delete in the string\n    if (frame.str.length > 1) {\n      stack.push({\n        node: frame.node,\n        editsRemaining: frame.editsRemaining - 1,\n        str: frame.str.slice(1)\n      })\n    }\n\n    // deletion\n    // just removing the last character from the str\n    if (frame.str.length == 1) {\n      frame.node.final = true\n    }\n\n    // substitution\n    // can only do a substitution if we have enough edits remaining\n    // and if there are characters left to substitute\n    if (frame.str.length >= 1) {\n      if (\"*\" in frame.node.edges) {\n        var substitutionNode = frame.node.edges[\"*\"]\n      } else {\n        var substitutionNode = new lunr.TokenSet\n        frame.node.edges[\"*\"] = substitutionNode\n      }\n\n      if (frame.str.length == 1) {\n        substitutionNode.final = true\n      }\n\n      stack.push({\n        node: substitutionNode,\n        editsRemaining: frame.editsRemaining - 1,\n        str: frame.str.slice(1)\n      })\n    }\n\n    // transposition\n    // can only do a transposition if there are edits remaining\n    // and there are enough characters to transpose\n    if (frame.str.length > 1) {\n      var charA = frame.str.charAt(0),\n          charB = frame.str.charAt(1),\n          transposeNode\n\n      if (charB in frame.node.edges) {\n        transposeNode = frame.node.edges[charB]\n      } else {\n        transposeNode = new lunr.TokenSet\n        frame.node.edges[charB] = transposeNode\n      }\n\n      if (frame.str.length == 1) {\n        transposeNode.final = true\n      }\n\n      stack.push({\n        node: transposeNode,\n        editsRemaining: frame.editsRemaining - 1,\n        str: charA + frame.str.slice(2)\n      })\n    }\n  }\n\n  return root\n}\n\n/**\n * Creates a TokenSet from a string.\n *\n * The string may contain one or more wildcard characters (*)\n * that will allow wildcard matching when intersecting with\n * another TokenSet.\n *\n * @param {string} str - The string to create a TokenSet from.\n * @returns {lunr.TokenSet}\n */\nlunr.TokenSet.fromString = function (str) {\n  var node = new lunr.TokenSet,\n      root = node\n\n  /*\n   * Iterates through all characters within the passed string\n   * appending a node for each character.\n   *\n   * When a wildcard character is found then a self\n   * referencing edge is introduced to continually match\n   * any number of any characters.\n   */\n  for (var i = 0, len = str.length; i < len; i++) {\n    var char = str[i],\n        final = (i == len - 1)\n\n    if (char == \"*\") {\n      node.edges[char] = node\n      node.final = final\n\n    } else {\n      var next = new lunr.TokenSet\n      next.final = final\n\n      node.edges[char] = next\n      node = next\n    }\n  }\n\n  return root\n}\n\n/**\n * Converts this TokenSet into an array of strings\n * contained within the TokenSet.\n *\n * This is not intended to be used on a TokenSet that\n * contains wildcards, in these cases the results are\n * undefined and are likely to cause an infinite loop.\n *\n * @returns {string[]}\n */\nlunr.TokenSet.prototype.toArray = function () {\n  var words = []\n\n  var stack = [{\n    prefix: \"\",\n    node: this\n  }]\n\n  while (stack.length) {\n    var frame = stack.pop(),\n        edges = Object.keys(frame.node.edges),\n        len = edges.length\n\n    if (frame.node.final) {\n      /* In Safari, at this point the prefix is sometimes corrupted, see:\n       * https://github.com/olivernn/lunr.js/issues/279 Calling any\n       * String.prototype method forces Safari to \"cast\" this string to what\n       * it's supposed to be, fixing the bug. */\n      frame.prefix.charAt(0)\n      words.push(frame.prefix)\n    }\n\n    for (var i = 0; i < len; i++) {\n      var edge = edges[i]\n\n      stack.push({\n        prefix: frame.prefix.concat(edge),\n        node: frame.node.edges[edge]\n      })\n    }\n  }\n\n  return words\n}\n\n/**\n * Generates a string representation of a TokenSet.\n *\n * This is intended to allow TokenSets to be used as keys\n * in objects, largely to aid the construction and minimisation\n * of a TokenSet. As such it is not designed to be a human\n * friendly representation of the TokenSet.\n *\n * @returns {string}\n */\nlunr.TokenSet.prototype.toString = function () {\n  // NOTE: Using Object.keys here as this.edges is very likely\n  // to enter 'hash-mode' with many keys being added\n  //\n  // avoiding a for-in loop here as it leads to the function\n  // being de-optimised (at least in V8). From some simple\n  // benchmarks the performance is comparable, but allowing\n  // V8 to optimize may mean easy performance wins in the future.\n\n  if (this._str) {\n    return this._str\n  }\n\n  var str = this.final ? '1' : '0',\n      labels = Object.keys(this.edges).sort(),\n      len = labels.length\n\n  for (var i = 0; i < len; i++) {\n    var label = labels[i],\n        node = this.edges[label]\n\n    str = str + label + node.id\n  }\n\n  return str\n}\n\n/**\n * Returns a new TokenSet that is the intersection of\n * this TokenSet and the passed TokenSet.\n *\n * This intersection will take into account any wildcards\n * contained within the TokenSet.\n *\n * @param {lunr.TokenSet} b - An other TokenSet to intersect with.\n * @returns {lunr.TokenSet}\n */\nlunr.TokenSet.prototype.intersect = function (b) {\n  var output = new lunr.TokenSet,\n      frame = undefined\n\n  var stack = [{\n    qNode: b,\n    output: output,\n    node: this\n  }]\n\n  while (stack.length) {\n    frame = stack.pop()\n\n    // NOTE: As with the #toString method, we are using\n    // Object.keys and a for loop instead of a for-in loop\n    // as both of these objects enter 'hash' mode, causing\n    // the function to be de-optimised in V8\n    var qEdges = Object.keys(frame.qNode.edges),\n        qLen = qEdges.length,\n        nEdges = Object.keys(frame.node.edges),\n        nLen = nEdges.length\n\n    for (var q = 0; q < qLen; q++) {\n      var qEdge = qEdges[q]\n\n      for (var n = 0; n < nLen; n++) {\n        var nEdge = nEdges[n]\n\n        if (nEdge == qEdge || qEdge == '*') {\n          var node = frame.node.edges[nEdge],\n              qNode = frame.qNode.edges[qEdge],\n              final = node.final && qNode.final,\n              next = undefined\n\n          if (nEdge in frame.output.edges) {\n            // an edge already exists for this character\n            // no need to create a new node, just set the finality\n            // bit unless this node is already final\n            next = frame.output.edges[nEdge]\n            next.final = next.final || final\n\n          } else {\n            // no edge exists yet, must create one\n            // set the finality bit and insert it\n            // into the output\n            next = new lunr.TokenSet\n            next.final = final\n            frame.output.edges[nEdge] = next\n          }\n\n          stack.push({\n            qNode: qNode,\n            output: next,\n            node: node\n          })\n        }\n      }\n    }\n  }\n\n  return output\n}\nlunr.TokenSet.Builder = function () {\n  this.previousWord = \"\"\n  this.root = new lunr.TokenSet\n  this.uncheckedNodes = []\n  this.minimizedNodes = {}\n}\n\nlunr.TokenSet.Builder.prototype.insert = function (word) {\n  var node,\n      commonPrefix = 0\n\n  if (word < this.previousWord) {\n    throw new Error (\"Out of order word insertion\")\n  }\n\n  for (var i = 0; i < word.length && i < this.previousWord.length; i++) {\n    if (word[i] != this.previousWord[i]) break\n    commonPrefix++\n  }\n\n  this.minimize(commonPrefix)\n\n  if (this.uncheckedNodes.length == 0) {\n    node = this.root\n  } else {\n    node = this.uncheckedNodes[this.uncheckedNodes.length - 1].child\n  }\n\n  for (var i = commonPrefix; i < word.length; i++) {\n    var nextNode = new lunr.TokenSet,\n        char = word[i]\n\n    node.edges[char] = nextNode\n\n    this.uncheckedNodes.push({\n      parent: node,\n      char: char,\n      child: nextNode\n    })\n\n    node = nextNode\n  }\n\n  node.final = true\n  this.previousWord = word\n}\n\nlunr.TokenSet.Builder.prototype.finish = function () {\n  this.minimize(0)\n}\n\nlunr.TokenSet.Builder.prototype.minimize = function (downTo) {\n  for (var i = this.uncheckedNodes.length - 1; i >= downTo; i--) {\n    var node = this.uncheckedNodes[i],\n        childKey = node.child.toString()\n\n    if (childKey in this.minimizedNodes) {\n      node.parent.edges[node.char] = this.minimizedNodes[childKey]\n    } else {\n      // Cache the key for this node since\n      // we know it can't change anymore\n      node.child._str = childKey\n\n      this.minimizedNodes[childKey] = node.child\n    }\n\n    this.uncheckedNodes.pop()\n  }\n}\n/*!\n * lunr.Index\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * An index contains the built index of all documents and provides a query interface\n * to the index.\n *\n * Usually instances of lunr.Index will not be created using this constructor, instead\n * lunr.Builder should be used to construct new indexes, or lunr.Index.load should be\n * used to load previously built and serialized indexes.\n *\n * @constructor\n * @param {Object} attrs - The attributes of the built search index.\n * @param {Object} attrs.invertedIndex - An index of term/field to document reference.\n * @param {Object<string, lunr.Vector>} attrs.fieldVectors - Field vectors\n * @param {lunr.TokenSet} attrs.tokenSet - An set of all corpus tokens.\n * @param {string[]} attrs.fields - The names of indexed document fields.\n * @param {lunr.Pipeline} attrs.pipeline - The pipeline to use for search terms.\n */\nlunr.Index = function (attrs) {\n  this.invertedIndex = attrs.invertedIndex\n  this.fieldVectors = attrs.fieldVectors\n  this.tokenSet = attrs.tokenSet\n  this.fields = attrs.fields\n  this.pipeline = attrs.pipeline\n}\n\n/**\n * A result contains details of a document matching a search query.\n * @typedef {Object} lunr.Index~Result\n * @property {string} ref - The reference of the document this result represents.\n * @property {number} score - A number between 0 and 1 representing how similar this document is to the query.\n * @property {lunr.MatchData} matchData - Contains metadata about this match including which term(s) caused the match.\n */\n\n/**\n * Although lunr provides the ability to create queries using lunr.Query, it also provides a simple\n * query language which itself is parsed into an instance of lunr.Query.\n *\n * For programmatically building queries it is advised to directly use lunr.Query, the query language\n * is best used for human entered text rather than program generated text.\n *\n * At its simplest queries can just be a single term, e.g. `hello`, multiple terms are also supported\n * and will be combined with OR, e.g `hello world` will match documents that contain either 'hello'\n * or 'world', though those that contain both will rank higher in the results.\n *\n * Wildcards can be included in terms to match one or more unspecified characters, these wildcards can\n * be inserted anywhere within the term, and more than one wildcard can exist in a single term. Adding\n * wildcards will increase the number of documents that will be found but can also have a negative\n * impact on query performance, especially with wildcards at the beginning of a term.\n *\n * Terms can be restricted to specific fields, e.g. `title:hello`, only documents with the term\n * hello in the title field will match this query. Using a field not present in the index will lead\n * to an error being thrown.\n *\n * Modifiers can also be added to terms, lunr supports edit distance and boost modifiers on terms. A term\n * boost will make documents matching that term score higher, e.g. `foo^5`. Edit distance is also supported\n * to provide fuzzy matching, e.g. 'hello~2' will match documents with hello with an edit distance of 2.\n * Avoid large values for edit distance to improve query performance.\n *\n * Each term also supports a presence modifier. By default a term's presence in document is optional, however\n * this can be changed to either required or prohibited. For a term's presence to be required in a document the\n * term should be prefixed with a '+', e.g. `+foo bar` is a search for documents that must contain 'foo' and\n * optionally contain 'bar'. Conversely a leading '-' sets the terms presence to prohibited, i.e. it must not\n * appear in a document, e.g. `-foo bar` is a search for documents that do not contain 'foo' but may contain 'bar'.\n *\n * To escape special characters the backslash character '\\' can be used, this allows searches to include\n * characters that would normally be considered modifiers, e.g. `foo\\~2` will search for a term \"foo~2\" instead\n * of attempting to apply a boost of 2 to the search term \"foo\".\n *\n * @typedef {string} lunr.Index~QueryString\n * @example <caption>Simple single term query</caption>\n * hello\n * @example <caption>Multiple term query</caption>\n * hello world\n * @example <caption>term scoped to a field</caption>\n * title:hello\n * @example <caption>term with a boost of 10</caption>\n * hello^10\n * @example <caption>term with an edit distance of 2</caption>\n * hello~2\n * @example <caption>terms with presence modifiers</caption>\n * -foo +bar baz\n */\n\n/**\n * Performs a search against the index using lunr query syntax.\n *\n * Results will be returned sorted by their score, the most relevant results\n * will be returned first.  For details on how the score is calculated, please see\n * the {@link https://lunrjs.com/guides/searching.html#scoring|guide}.\n *\n * For more programmatic querying use lunr.Index#query.\n *\n * @param {lunr.Index~QueryString} queryString - A string containing a lunr query.\n * @throws {lunr.QueryParseError} If the passed query string cannot be parsed.\n * @returns {lunr.Index~Result[]}\n */\nlunr.Index.prototype.search = function (queryString) {\n  return this.query(function (query) {\n    var parser = new lunr.QueryParser(queryString, query)\n    parser.parse()\n  })\n}\n\n/**\n * A query builder callback provides a query object to be used to express\n * the query to perform on the index.\n *\n * @callback lunr.Index~queryBuilder\n * @param {lunr.Query} query - The query object to build up.\n * @this lunr.Query\n */\n\n/**\n * Performs a query against the index using the yielded lunr.Query object.\n *\n * If performing programmatic queries against the index, this method is preferred\n * over lunr.Index#search so as to avoid the additional query parsing overhead.\n *\n * A query object is yielded to the supplied function which should be used to\n * express the query to be run against the index.\n *\n * Note that although this function takes a callback parameter it is _not_ an\n * asynchronous operation, the callback is just yielded a query object to be\n * customized.\n *\n * @param {lunr.Index~queryBuilder} fn - A function that is used to build the query.\n * @returns {lunr.Index~Result[]}\n */\nlunr.Index.prototype.query = function (fn) {\n  // for each query clause\n  // * process terms\n  // * expand terms from token set\n  // * find matching documents and metadata\n  // * get document vectors\n  // * score documents\n\n  var query = new lunr.Query(this.fields),\n      matchingFields = Object.create(null),\n      queryVectors = Object.create(null),\n      termFieldCache = Object.create(null),\n      requiredMatches = Object.create(null),\n      prohibitedMatches = Object.create(null)\n\n  /*\n   * To support field level boosts a query vector is created per\n   * field. An empty vector is eagerly created to support negated\n   * queries.\n   */\n  for (var i = 0; i < this.fields.length; i++) {\n    queryVectors[this.fields[i]] = new lunr.Vector\n  }\n\n  fn.call(query, query)\n\n  for (var i = 0; i < query.clauses.length; i++) {\n    /*\n     * Unless the pipeline has been disabled for this term, which is\n     * the case for terms with wildcards, we need to pass the clause\n     * term through the search pipeline. A pipeline returns an array\n     * of processed terms. Pipeline functions may expand the passed\n     * term, which means we may end up performing multiple index lookups\n     * for a single query term.\n     */\n    var clause = query.clauses[i],\n        terms = null,\n        clauseMatches = lunr.Set.empty\n\n    if (clause.usePipeline) {\n      terms = this.pipeline.runString(clause.term, {\n        fields: clause.fields\n      })\n    } else {\n      terms = [clause.term]\n    }\n\n    for (var m = 0; m < terms.length; m++) {\n      var term = terms[m]\n\n      /*\n       * Each term returned from the pipeline needs to use the same query\n       * clause object, e.g. the same boost and or edit distance. The\n       * simplest way to do this is to re-use the clause object but mutate\n       * its term property.\n       */\n      clause.term = term\n\n      /*\n       * From the term in the clause we create a token set which will then\n       * be used to intersect the indexes token set to get a list of terms\n       * to lookup in the inverted index\n       */\n      var termTokenSet = lunr.TokenSet.fromClause(clause),\n          expandedTerms = this.tokenSet.intersect(termTokenSet).toArray()\n\n      /*\n       * If a term marked as required does not exist in the tokenSet it is\n       * impossible for the search to return any matches. We set all the field\n       * scoped required matches set to empty and stop examining any further\n       * clauses.\n       */\n      if (expandedTerms.length === 0 && clause.presence === lunr.Query.presence.REQUIRED) {\n        for (var k = 0; k < clause.fields.length; k++) {\n          var field = clause.fields[k]\n          requiredMatches[field] = lunr.Set.empty\n        }\n\n        break\n      }\n\n      for (var j = 0; j < expandedTerms.length; j++) {\n        /*\n         * For each term get the posting and termIndex, this is required for\n         * building the query vector.\n         */\n        var expandedTerm = expandedTerms[j],\n            posting = this.invertedIndex[expandedTerm],\n            termIndex = posting._index\n\n        for (var k = 0; k < clause.fields.length; k++) {\n          /*\n           * For each field that this query term is scoped by (by default\n           * all fields are in scope) we need to get all the document refs\n           * that have this term in that field.\n           *\n           * The posting is the entry in the invertedIndex for the matching\n           * term from above.\n           */\n          var field = clause.fields[k],\n              fieldPosting = posting[field],\n              matchingDocumentRefs = Object.keys(fieldPosting),\n              termField = expandedTerm + \"/\" + field,\n              matchingDocumentsSet = new lunr.Set(matchingDocumentRefs)\n\n          /*\n           * if the presence of this term is required ensure that the matching\n           * documents are added to the set of required matches for this clause.\n           *\n           */\n          if (clause.presence == lunr.Query.presence.REQUIRED) {\n            clauseMatches = clauseMatches.union(matchingDocumentsSet)\n\n            if (requiredMatches[field] === undefined) {\n              requiredMatches[field] = lunr.Set.complete\n            }\n          }\n\n          /*\n           * if the presence of this term is prohibited ensure that the matching\n           * documents are added to the set of prohibited matches for this field,\n           * creating that set if it does not yet exist.\n           */\n          if (clause.presence == lunr.Query.presence.PROHIBITED) {\n            if (prohibitedMatches[field] === undefined) {\n              prohibitedMatches[field] = lunr.Set.empty\n            }\n\n            prohibitedMatches[field] = prohibitedMatches[field].union(matchingDocumentsSet)\n\n            /*\n             * Prohibited matches should not be part of the query vector used for\n             * similarity scoring and no metadata should be extracted so we continue\n             * to the next field\n             */\n            continue\n          }\n\n          /*\n           * The query field vector is populated using the termIndex found for\n           * the term and a unit value with the appropriate boost applied.\n           * Using upsert because there could already be an entry in the vector\n           * for the term we are working with. In that case we just add the scores\n           * together.\n           */\n          queryVectors[field].upsert(termIndex, clause.boost, function (a, b) { return a + b })\n\n          /**\n           * If we've already seen this term, field combo then we've already collected\n           * the matching documents and metadata, no need to go through all that again\n           */\n          if (termFieldCache[termField]) {\n            continue\n          }\n\n          for (var l = 0; l < matchingDocumentRefs.length; l++) {\n            /*\n             * All metadata for this term/field/document triple\n             * are then extracted and collected into an instance\n             * of lunr.MatchData ready to be returned in the query\n             * results\n             */\n            var matchingDocumentRef = matchingDocumentRefs[l],\n                matchingFieldRef = new lunr.FieldRef (matchingDocumentRef, field),\n                metadata = fieldPosting[matchingDocumentRef],\n                fieldMatch\n\n            if ((fieldMatch = matchingFields[matchingFieldRef]) === undefined) {\n              matchingFields[matchingFieldRef] = new lunr.MatchData (expandedTerm, field, metadata)\n            } else {\n              fieldMatch.add(expandedTerm, field, metadata)\n            }\n\n          }\n\n          termFieldCache[termField] = true\n        }\n      }\n    }\n\n    /**\n     * If the presence was required we need to update the requiredMatches field sets.\n     * We do this after all fields for the term have collected their matches because\n     * the clause terms presence is required in _any_ of the fields not _all_ of the\n     * fields.\n     */\n    if (clause.presence === lunr.Query.presence.REQUIRED) {\n      for (var k = 0; k < clause.fields.length; k++) {\n        var field = clause.fields[k]\n        requiredMatches[field] = requiredMatches[field].intersect(clauseMatches)\n      }\n    }\n  }\n\n  /**\n   * Need to combine the field scoped required and prohibited\n   * matching documents into a global set of required and prohibited\n   * matches\n   */\n  var allRequiredMatches = lunr.Set.complete,\n      allProhibitedMatches = lunr.Set.empty\n\n  for (var i = 0; i < this.fields.length; i++) {\n    var field = this.fields[i]\n\n    if (requiredMatches[field]) {\n      allRequiredMatches = allRequiredMatches.intersect(requiredMatches[field])\n    }\n\n    if (prohibitedMatches[field]) {\n      allProhibitedMatches = allProhibitedMatches.union(prohibitedMatches[field])\n    }\n  }\n\n  var matchingFieldRefs = Object.keys(matchingFields),\n      results = [],\n      matches = Object.create(null)\n\n  /*\n   * If the query is negated (contains only prohibited terms)\n   * we need to get _all_ fieldRefs currently existing in the\n   * index. This is only done when we know that the query is\n   * entirely prohibited terms to avoid any cost of getting all\n   * fieldRefs unnecessarily.\n   *\n   * Additionally, blank MatchData must be created to correctly\n   * populate the results.\n   */\n  if (query.isNegated()) {\n    matchingFieldRefs = Object.keys(this.fieldVectors)\n\n    for (var i = 0; i < matchingFieldRefs.length; i++) {\n      var matchingFieldRef = matchingFieldRefs[i]\n      var fieldRef = lunr.FieldRef.fromString(matchingFieldRef)\n      matchingFields[matchingFieldRef] = new lunr.MatchData\n    }\n  }\n\n  for (var i = 0; i < matchingFieldRefs.length; i++) {\n    /*\n     * Currently we have document fields that match the query, but we\n     * need to return documents. The matchData and scores are combined\n     * from multiple fields belonging to the same document.\n     *\n     * Scores are calculated by field, using the query vectors created\n     * above, and combined into a final document score using addition.\n     */\n    var fieldRef = lunr.FieldRef.fromString(matchingFieldRefs[i]),\n        docRef = fieldRef.docRef\n\n    if (!allRequiredMatches.contains(docRef)) {\n      continue\n    }\n\n    if (allProhibitedMatches.contains(docRef)) {\n      continue\n    }\n\n    var fieldVector = this.fieldVectors[fieldRef],\n        score = queryVectors[fieldRef.fieldName].similarity(fieldVector),\n        docMatch\n\n    if ((docMatch = matches[docRef]) !== undefined) {\n      docMatch.score += score\n      docMatch.matchData.combine(matchingFields[fieldRef])\n    } else {\n      var match = {\n        ref: docRef,\n        score: score,\n        matchData: matchingFields[fieldRef]\n      }\n      matches[docRef] = match\n      results.push(match)\n    }\n  }\n\n  /*\n   * Sort the results objects by score, highest first.\n   */\n  return results.sort(function (a, b) {\n    return b.score - a.score\n  })\n}\n\n/**\n * Prepares the index for JSON serialization.\n *\n * The schema for this JSON blob will be described in a\n * separate JSON schema file.\n *\n * @returns {Object}\n */\nlunr.Index.prototype.toJSON = function () {\n  var invertedIndex = Object.keys(this.invertedIndex)\n    .sort()\n    .map(function (term) {\n      return [term, this.invertedIndex[term]]\n    }, this)\n\n  var fieldVectors = Object.keys(this.fieldVectors)\n    .map(function (ref) {\n      return [ref, this.fieldVectors[ref].toJSON()]\n    }, this)\n\n  return {\n    version: lunr.version,\n    fields: this.fields,\n    fieldVectors: fieldVectors,\n    invertedIndex: invertedIndex,\n    pipeline: this.pipeline.toJSON()\n  }\n}\n\n/**\n * Loads a previously serialized lunr.Index\n *\n * @param {Object} serializedIndex - A previously serialized lunr.Index\n * @returns {lunr.Index}\n */\nlunr.Index.load = function (serializedIndex) {\n  var attrs = {},\n      fieldVectors = {},\n      serializedVectors = serializedIndex.fieldVectors,\n      invertedIndex = Object.create(null),\n      serializedInvertedIndex = serializedIndex.invertedIndex,\n      tokenSetBuilder = new lunr.TokenSet.Builder,\n      pipeline = lunr.Pipeline.load(serializedIndex.pipeline)\n\n  if (serializedIndex.version != lunr.version) {\n    lunr.utils.warn(\"Version mismatch when loading serialised index. Current version of lunr '\" + lunr.version + \"' does not match serialized index '\" + serializedIndex.version + \"'\")\n  }\n\n  for (var i = 0; i < serializedVectors.length; i++) {\n    var tuple = serializedVectors[i],\n        ref = tuple[0],\n        elements = tuple[1]\n\n    fieldVectors[ref] = new lunr.Vector(elements)\n  }\n\n  for (var i = 0; i < serializedInvertedIndex.length; i++) {\n    var tuple = serializedInvertedIndex[i],\n        term = tuple[0],\n        posting = tuple[1]\n\n    tokenSetBuilder.insert(term)\n    invertedIndex[term] = posting\n  }\n\n  tokenSetBuilder.finish()\n\n  attrs.fields = serializedIndex.fields\n\n  attrs.fieldVectors = fieldVectors\n  attrs.invertedIndex = invertedIndex\n  attrs.tokenSet = tokenSetBuilder.root\n  attrs.pipeline = pipeline\n\n  return new lunr.Index(attrs)\n}\n/*!\n * lunr.Builder\n * Copyright (C) 2020 Oliver Nightingale\n */\n\n/**\n * lunr.Builder performs indexing on a set of documents and\n * returns instances of lunr.Index ready for querying.\n *\n * All configuration of the index is done via the builder, the\n * fields to index, the document reference, the text processing\n * pipeline and document scoring parameters are all set on the\n * builder before indexing.\n *\n * @constructor\n * @property {string} _ref - Internal reference to the document reference field.\n * @property {string[]} _fields - Internal reference to the document fields to index.\n * @property {object} invertedIndex - The inverted index maps terms to document fields.\n * @property {object} documentTermFrequencies - Keeps track of document term frequencies.\n * @property {object} documentLengths - Keeps track of the length of documents added to the index.\n * @property {lunr.tokenizer} tokenizer - Function for splitting strings into tokens for indexing.\n * @property {lunr.Pipeline} pipeline - The pipeline performs text processing on tokens before indexing.\n * @property {lunr.Pipeline} searchPipeline - A pipeline for processing search terms before querying the index.\n * @property {number} documentCount - Keeps track of the total number of documents indexed.\n * @property {number} _b - A parameter to control field length normalization, setting this to 0 disabled normalization, 1 fully normalizes field lengths, the default value is 0.75.\n * @property {number} _k1 - A parameter to control how quickly an increase in term frequency results in term frequency saturation, the default value is 1.2.\n * @property {number} termIndex - A counter incremented for each unique term, used to identify a terms position in the vector space.\n * @property {array} metadataWhitelist - A list of metadata keys that have been whitelisted for entry in the index.\n */\nlunr.Builder = function () {\n  this._ref = \"id\"\n  this._fields = Object.create(null)\n  this._documents = Object.create(null)\n  this.invertedIndex = Object.create(null)\n  this.fieldTermFrequencies = {}\n  this.fieldLengths = {}\n  this.tokenizer = lunr.tokenizer\n  this.pipeline = new lunr.Pipeline\n  this.searchPipeline = new lunr.Pipeline\n  this.documentCount = 0\n  this._b = 0.75\n  this._k1 = 1.2\n  this.termIndex = 0\n  this.metadataWhitelist = []\n}\n\n/**\n * Sets the document field used as the document reference. Every document must have this field.\n * The type of this field in the document should be a string, if it is not a string it will be\n * coerced into a string by calling toString.\n *\n * The default ref is 'id'.\n *\n * The ref should _not_ be changed during indexing, it should be set before any documents are\n * added to the index. Changing it during indexing can lead to inconsistent results.\n *\n * @param {string} ref - The name of the reference field in the document.\n */\nlunr.Builder.prototype.ref = function (ref) {\n  this._ref = ref\n}\n\n/**\n * A function that is used to extract a field from a document.\n *\n * Lunr expects a field to be at the top level of a document, if however the field\n * is deeply nested within a document an extractor function can be used to extract\n * the right field for indexing.\n *\n * @callback fieldExtractor\n * @param {object} doc - The document being added to the index.\n * @returns {?(string|object|object[])} obj - The object that will be indexed for this field.\n * @example <caption>Extracting a nested field</caption>\n * function (doc) { return doc.nested.field }\n */\n\n/**\n * Adds a field to the list of document fields that will be indexed. Every document being\n * indexed should have this field. Null values for this field in indexed documents will\n * not cause errors but will limit the chance of that document being retrieved by searches.\n *\n * All fields should be added before adding documents to the index. Adding fields after\n * a document has been indexed will have no effect on already indexed documents.\n *\n * Fields can be boosted at build time. This allows terms within that field to have more\n * importance when ranking search results. Use a field boost to specify that matches within\n * one field are more important than other fields.\n *\n * @param {string} fieldName - The name of a field to index in all documents.\n * @param {object} attributes - Optional attributes associated with this field.\n * @param {number} [attributes.boost=1] - Boost applied to all terms within this field.\n * @param {fieldExtractor} [attributes.extractor] - Function to extract a field from a document.\n * @throws {RangeError} fieldName cannot contain unsupported characters '/'\n */\nlunr.Builder.prototype.field = function (fieldName, attributes) {\n  if (/\\//.test(fieldName)) {\n    throw new RangeError (\"Field '\" + fieldName + \"' contains illegal character '/'\")\n  }\n\n  this._fields[fieldName] = attributes || {}\n}\n\n/**\n * A parameter to tune the amount of field length normalisation that is applied when\n * calculating relevance scores. A value of 0 will completely disable any normalisation\n * and a value of 1 will fully normalise field lengths. The default is 0.75. Values of b\n * will be clamped to the range 0 - 1.\n *\n * @param {number} number - The value to set for this tuning parameter.\n */\nlunr.Builder.prototype.b = function (number) {\n  if (number < 0) {\n    this._b = 0\n  } else if (number > 1) {\n    this._b = 1\n  } else {\n    this._b = number\n  }\n}\n\n/**\n * A parameter that controls the speed at which a rise in term frequency results in term\n * frequency saturation. The default value is 1.2. Setting this to a higher value will give\n * slower saturation levels, a lower value will result in quicker saturation.\n *\n * @param {number} number - The value to set for this tuning parameter.\n */\nlunr.Builder.prototype.k1 = function (number) {\n  this._k1 = number\n}\n\n/**\n * Adds a document to the index.\n *\n * Before adding fields to the index the index should have been fully setup, with the document\n * ref and all fields to index already having been specified.\n *\n * The document must have a field name as specified by the ref (by default this is 'id') and\n * it should have all fields defined for indexing, though null or undefined values will not\n * cause errors.\n *\n * Entire documents can be boosted at build time. Applying a boost to a document indicates that\n * this document should rank higher in search results than other documents.\n *\n * @param {object} doc - The document to add to the index.\n * @param {object} attributes - Optional attributes associated with this document.\n * @param {number} [attributes.boost=1] - Boost applied to all terms within this document.\n */\nlunr.Builder.prototype.add = function (doc, attributes) {\n  var docRef = doc[this._ref],\n      fields = Object.keys(this._fields)\n\n  this._documents[docRef] = attributes || {}\n  this.documentCount += 1\n\n  for (var i = 0; i < fields.length; i++) {\n    var fieldName = fields[i],\n        extractor = this._fields[fieldName].extractor,\n        field = extractor ? extractor(doc) : doc[fieldName],\n        tokens = this.tokenizer(field, {\n          fields: [fieldName]\n        }),\n        terms = this.pipeline.run(tokens),\n        fieldRef = new lunr.FieldRef (docRef, fieldName),\n        fieldTerms = Object.create(null)\n\n    this.fieldTermFrequencies[fieldRef] = fieldTerms\n    this.fieldLengths[fieldRef] = 0\n\n    // store the length of this field for this document\n    this.fieldLengths[fieldRef] += terms.length\n\n    // calculate term frequencies for this field\n    for (var j = 0; j < terms.length; j++) {\n      var term = terms[j]\n\n      if (fieldTerms[term] == undefined) {\n        fieldTerms[term] = 0\n      }\n\n      fieldTerms[term] += 1\n\n      // add to inverted index\n      // create an initial posting if one doesn't exist\n      if (this.invertedIndex[term] == undefined) {\n        var posting = Object.create(null)\n        posting[\"_index\"] = this.termIndex\n        this.termIndex += 1\n\n        for (var k = 0; k < fields.length; k++) {\n          posting[fields[k]] = Object.create(null)\n        }\n\n        this.invertedIndex[term] = posting\n      }\n\n      // add an entry for this term/fieldName/docRef to the invertedIndex\n      if (this.invertedIndex[term][fieldName][docRef] == undefined) {\n        this.invertedIndex[term][fieldName][docRef] = Object.create(null)\n      }\n\n      // store all whitelisted metadata about this token in the\n      // inverted index\n      for (var l = 0; l < this.metadataWhitelist.length; l++) {\n        var metadataKey = this.metadataWhitelist[l],\n            metadata = term.metadata[metadataKey]\n\n        if (this.invertedIndex[term][fieldName][docRef][metadataKey] == undefined) {\n          this.invertedIndex[term][fieldName][docRef][metadataKey] = []\n        }\n\n        this.invertedIndex[term][fieldName][docRef][metadataKey].push(metadata)\n      }\n    }\n\n  }\n}\n\n/**\n * Calculates the average document length for this index\n *\n * @private\n */\nlunr.Builder.prototype.calculateAverageFieldLengths = function () {\n\n  var fieldRefs = Object.keys(this.fieldLengths),\n      numberOfFields = fieldRefs.length,\n      accumulator = {},\n      documentsWithField = {}\n\n  for (var i = 0; i < numberOfFields; i++) {\n    var fieldRef = lunr.FieldRef.fromString(fieldRefs[i]),\n        field = fieldRef.fieldName\n\n    documentsWithField[field] || (documentsWithField[field] = 0)\n    documentsWithField[field] += 1\n\n    accumulator[field] || (accumulator[field] = 0)\n    accumulator[field] += this.fieldLengths[fieldRef]\n  }\n\n  var fields = Object.keys(this._fields)\n\n  for (var i = 0; i < fields.length; i++) {\n    var fieldName = fields[i]\n    accumulator[fieldName] = accumulator[fieldName] / documentsWithField[fieldName]\n  }\n\n  this.averageFieldLength = accumulator\n}\n\n/**\n * Builds a vector space model of every document using lunr.Vector\n *\n * @private\n */\nlunr.Builder.prototype.createFieldVectors = function () {\n  var fieldVectors = {},\n      fieldRefs = Object.keys(this.fieldTermFrequencies),\n      fieldRefsLength = fieldRefs.length,\n      termIdfCache = Object.create(null)\n\n  for (var i = 0; i < fieldRefsLength; i++) {\n    var fieldRef = lunr.FieldRef.fromString(fieldRefs[i]),\n        fieldName = fieldRef.fieldName,\n        fieldLength = this.fieldLengths[fieldRef],\n        fieldVector = new lunr.Vector,\n        termFrequencies = this.fieldTermFrequencies[fieldRef],\n        terms = Object.keys(termFrequencies),\n        termsLength = terms.length\n\n\n    var fieldBoost = this._fields[fieldName].boost || 1,\n        docBoost = this._documents[fieldRef.docRef].boost || 1\n\n    for (var j = 0; j < termsLength; j++) {\n      var term = terms[j],\n          tf = termFrequencies[term],\n          termIndex = this.invertedIndex[term]._index,\n          idf, score, scoreWithPrecision\n\n      if (termIdfCache[term] === undefined) {\n        idf = lunr.idf(this.invertedIndex[term], this.documentCount)\n        termIdfCache[term] = idf\n      } else {\n        idf = termIdfCache[term]\n      }\n\n      score = idf * ((this._k1 + 1) * tf) / (this._k1 * (1 - this._b + this._b * (fieldLength / this.averageFieldLength[fieldName])) + tf)\n      score *= fieldBoost\n      score *= docBoost\n      scoreWithPrecision = Math.round(score * 1000) / 1000\n      // Converts 1.23456789 to 1.234.\n      // Reducing the precision so that the vectors take up less\n      // space when serialised. Doing it now so that they behave\n      // the same before and after serialisation. Also, this is\n      // the fastest approach to reducing a number's precision in\n      // JavaScript.\n\n      fieldVector.insert(termIndex, scoreWithPrecision)\n    }\n\n    fieldVectors[fieldRef] = fieldVector\n  }\n\n  this.fieldVectors = fieldVectors\n}\n\n/**\n * Creates a token set of all tokens in the index using lunr.TokenSet\n *\n * @private\n */\nlunr.Builder.prototype.createTokenSet = function () {\n  this.tokenSet = lunr.TokenSet.fromArray(\n    Object.keys(this.invertedIndex).sort()\n  )\n}\n\n/**\n * Builds the index, creating an instance of lunr.Index.\n *\n * This completes the indexing process and should only be called\n * once all documents have been added to the index.\n *\n * @returns {lunr.Index}\n */\nlunr.Builder.prototype.build = function () {\n  this.calculateAverageFieldLengths()\n  this.createFieldVectors()\n  this.createTokenSet()\n\n  return new lunr.Index({\n    invertedIndex: this.invertedIndex,\n    fieldVectors: this.fieldVectors,\n    tokenSet: this.tokenSet,\n    fields: Object.keys(this._fields),\n    pipeline: this.searchPipeline\n  })\n}\n\n/**\n * Applies a plugin to the index builder.\n *\n * A plugin is a function that is called with the index builder as its context.\n * Plugins can be used to customise or extend the behaviour of the index\n * in some way. A plugin is just a function, that encapsulated the custom\n * behaviour that should be applied when building the index.\n *\n * The plugin function will be called with the index builder as its argument, additional\n * arguments can also be passed when calling use. The function will be called\n * with the index builder as its context.\n *\n * @param {Function} plugin The plugin to apply.\n */\nlunr.Builder.prototype.use = function (fn) {\n  var args = Array.prototype.slice.call(arguments, 1)\n  args.unshift(this)\n  fn.apply(this, args)\n}\n/**\n * Contains and collects metadata about a matching document.\n * A single instance of lunr.MatchData is returned as part of every\n * lunr.Index~Result.\n *\n * @constructor\n * @param {string} term - The term this match data is associated with\n * @param {string} field - The field in which the term was found\n * @param {object} metadata - The metadata recorded about this term in this field\n * @property {object} metadata - A cloned collection of metadata associated with this document.\n * @see {@link lunr.Index~Result}\n */\nlunr.MatchData = function (term, field, metadata) {\n  var clonedMetadata = Object.create(null),\n      metadataKeys = Object.keys(metadata || {})\n\n  // Cloning the metadata to prevent the original\n  // being mutated during match data combination.\n  // Metadata is kept in an array within the inverted\n  // index so cloning the data can be done with\n  // Array#slice\n  for (var i = 0; i < metadataKeys.length; i++) {\n    var key = metadataKeys[i]\n    clonedMetadata[key] = metadata[key].slice()\n  }\n\n  this.metadata = Object.create(null)\n\n  if (term !== undefined) {\n    this.metadata[term] = Object.create(null)\n    this.metadata[term][field] = clonedMetadata\n  }\n}\n\n/**\n * An instance of lunr.MatchData will be created for every term that matches a\n * document. However only one instance is required in a lunr.Index~Result. This\n * method combines metadata from another instance of lunr.MatchData with this\n * objects metadata.\n *\n * @param {lunr.MatchData} otherMatchData - Another instance of match data to merge with this one.\n * @see {@link lunr.Index~Result}\n */\nlunr.MatchData.prototype.combine = function (otherMatchData) {\n  var terms = Object.keys(otherMatchData.metadata)\n\n  for (var i = 0; i < terms.length; i++) {\n    var term = terms[i],\n        fields = Object.keys(otherMatchData.metadata[term])\n\n    if (this.metadata[term] == undefined) {\n      this.metadata[term] = Object.create(null)\n    }\n\n    for (var j = 0; j < fields.length; j++) {\n      var field = fields[j],\n          keys = Object.keys(otherMatchData.metadata[term][field])\n\n      if (this.metadata[term][field] == undefined) {\n        this.metadata[term][field] = Object.create(null)\n      }\n\n      for (var k = 0; k < keys.length; k++) {\n        var key = keys[k]\n\n        if (this.metadata[term][field][key] == undefined) {\n          this.metadata[term][field][key] = otherMatchData.metadata[term][field][key]\n        } else {\n          this.metadata[term][field][key] = this.metadata[term][field][key].concat(otherMatchData.metadata[term][field][key])\n        }\n\n      }\n    }\n  }\n}\n\n/**\n * Add metadata for a term/field pair to this instance of match data.\n *\n * @param {string} term - The term this match data is associated with\n * @param {string} field - The field in which the term was found\n * @param {object} metadata - The metadata recorded about this term in this field\n */\nlunr.MatchData.prototype.add = function (term, field, metadata) {\n  if (!(term in this.metadata)) {\n    this.metadata[term] = Object.create(null)\n    this.metadata[term][field] = metadata\n    return\n  }\n\n  if (!(field in this.metadata[term])) {\n    this.metadata[term][field] = metadata\n    return\n  }\n\n  var metadataKeys = Object.keys(metadata)\n\n  for (var i = 0; i < metadataKeys.length; i++) {\n    var key = metadataKeys[i]\n\n    if (key in this.metadata[term][field]) {\n      this.metadata[term][field][key] = this.metadata[term][field][key].concat(metadata[key])\n    } else {\n      this.metadata[term][field][key] = metadata[key]\n    }\n  }\n}\n/**\n * A lunr.Query provides a programmatic way of defining queries to be performed\n * against a {@link lunr.Index}.\n *\n * Prefer constructing a lunr.Query using the {@link lunr.Index#query} method\n * so the query object is pre-initialized with the right index fields.\n *\n * @constructor\n * @property {lunr.Query~Clause[]} clauses - An array of query clauses.\n * @property {string[]} allFields - An array of all available fields in a lunr.Index.\n */\nlunr.Query = function (allFields) {\n  this.clauses = []\n  this.allFields = allFields\n}\n\n/**\n * Constants for indicating what kind of automatic wildcard insertion will be used when constructing a query clause.\n *\n * This allows wildcards to be added to the beginning and end of a term without having to manually do any string\n * concatenation.\n *\n * The wildcard constants can be bitwise combined to select both leading and trailing wildcards.\n *\n * @constant\n * @default\n * @property {number} wildcard.NONE - The term will have no wildcards inserted, this is the default behaviour\n * @property {number} wildcard.LEADING - Prepend the term with a wildcard, unless a leading wildcard already exists\n * @property {number} wildcard.TRAILING - Append a wildcard to the term, unless a trailing wildcard already exists\n * @see lunr.Query~Clause\n * @see lunr.Query#clause\n * @see lunr.Query#term\n * @example <caption>query term with trailing wildcard</caption>\n * query.term('foo', { wildcard: lunr.Query.wildcard.TRAILING })\n * @example <caption>query term with leading and trailing wildcard</caption>\n * query.term('foo', {\n *   wildcard: lunr.Query.wildcard.LEADING | lunr.Query.wildcard.TRAILING\n * })\n */\n\nlunr.Query.wildcard = new String (\"*\")\nlunr.Query.wildcard.NONE = 0\nlunr.Query.wildcard.LEADING = 1\nlunr.Query.wildcard.TRAILING = 2\n\n/**\n * Constants for indicating what kind of presence a term must have in matching documents.\n *\n * @constant\n * @enum {number}\n * @see lunr.Query~Clause\n * @see lunr.Query#clause\n * @see lunr.Query#term\n * @example <caption>query term with required presence</caption>\n * query.term('foo', { presence: lunr.Query.presence.REQUIRED })\n */\nlunr.Query.presence = {\n  /**\n   * Term's presence in a document is optional, this is the default value.\n   */\n  OPTIONAL: 1,\n\n  /**\n   * Term's presence in a document is required, documents that do not contain\n   * this term will not be returned.\n   */\n  REQUIRED: 2,\n\n  /**\n   * Term's presence in a document is prohibited, documents that do contain\n   * this term will not be returned.\n   */\n  PROHIBITED: 3\n}\n\n/**\n * A single clause in a {@link lunr.Query} contains a term and details on how to\n * match that term against a {@link lunr.Index}.\n *\n * @typedef {Object} lunr.Query~Clause\n * @property {string[]} fields - The fields in an index this clause should be matched against.\n * @property {number} [boost=1] - Any boost that should be applied when matching this clause.\n * @property {number} [editDistance] - Whether the term should have fuzzy matching applied, and how fuzzy the match should be.\n * @property {boolean} [usePipeline] - Whether the term should be passed through the search pipeline.\n * @property {number} [wildcard=lunr.Query.wildcard.NONE] - Whether the term should have wildcards appended or prepended.\n * @property {number} [presence=lunr.Query.presence.OPTIONAL] - The terms presence in any matching documents.\n */\n\n/**\n * Adds a {@link lunr.Query~Clause} to this query.\n *\n * Unless the clause contains the fields to be matched all fields will be matched. In addition\n * a default boost of 1 is applied to the clause.\n *\n * @param {lunr.Query~Clause} clause - The clause to add to this query.\n * @see lunr.Query~Clause\n * @returns {lunr.Query}\n */\nlunr.Query.prototype.clause = function (clause) {\n  if (!('fields' in clause)) {\n    clause.fields = this.allFields\n  }\n\n  if (!('boost' in clause)) {\n    clause.boost = 1\n  }\n\n  if (!('usePipeline' in clause)) {\n    clause.usePipeline = true\n  }\n\n  if (!('wildcard' in clause)) {\n    clause.wildcard = lunr.Query.wildcard.NONE\n  }\n\n  if ((clause.wildcard & lunr.Query.wildcard.LEADING) && (clause.term.charAt(0) != lunr.Query.wildcard)) {\n    clause.term = \"*\" + clause.term\n  }\n\n  if ((clause.wildcard & lunr.Query.wildcard.TRAILING) && (clause.term.slice(-1) != lunr.Query.wildcard)) {\n    clause.term = \"\" + clause.term + \"*\"\n  }\n\n  if (!('presence' in clause)) {\n    clause.presence = lunr.Query.presence.OPTIONAL\n  }\n\n  this.clauses.push(clause)\n\n  return this\n}\n\n/**\n * A negated query is one in which every clause has a presence of\n * prohibited. These queries require some special processing to return\n * the expected results.\n *\n * @returns boolean\n */\nlunr.Query.prototype.isNegated = function () {\n  for (var i = 0; i < this.clauses.length; i++) {\n    if (this.clauses[i].presence != lunr.Query.presence.PROHIBITED) {\n      return false\n    }\n  }\n\n  return true\n}\n\n/**\n * Adds a term to the current query, under the covers this will create a {@link lunr.Query~Clause}\n * to the list of clauses that make up this query.\n *\n * The term is used as is, i.e. no tokenization will be performed by this method. Instead conversion\n * to a token or token-like string should be done before calling this method.\n *\n * The term will be converted to a string by calling `toString`. Multiple terms can be passed as an\n * array, each term in the array will share the same options.\n *\n * @param {object|object[]} term - The term(s) to add to the query.\n * @param {object} [options] - Any additional properties to add to the query clause.\n * @returns {lunr.Query}\n * @see lunr.Query#clause\n * @see lunr.Query~Clause\n * @example <caption>adding a single term to a query</caption>\n * query.term(\"foo\")\n * @example <caption>adding a single term to a query and specifying search fields, term boost and automatic trailing wildcard</caption>\n * query.term(\"foo\", {\n *   fields: [\"title\"],\n *   boost: 10,\n *   wildcard: lunr.Query.wildcard.TRAILING\n * })\n * @example <caption>using lunr.tokenizer to convert a string to tokens before using them as terms</caption>\n * query.term(lunr.tokenizer(\"foo bar\"))\n */\nlunr.Query.prototype.term = function (term, options) {\n  if (Array.isArray(term)) {\n    term.forEach(function (t) { this.term(t, lunr.utils.clone(options)) }, this)\n    return this\n  }\n\n  var clause = options || {}\n  clause.term = term.toString()\n\n  this.clause(clause)\n\n  return this\n}\nlunr.QueryParseError = function (message, start, end) {\n  this.name = \"QueryParseError\"\n  this.message = message\n  this.start = start\n  this.end = end\n}\n\nlunr.QueryParseError.prototype = new Error\nlunr.QueryLexer = function (str) {\n  this.lexemes = []\n  this.str = str\n  this.length = str.length\n  this.pos = 0\n  this.start = 0\n  this.escapeCharPositions = []\n}\n\nlunr.QueryLexer.prototype.run = function () {\n  var state = lunr.QueryLexer.lexText\n\n  while (state) {\n    state = state(this)\n  }\n}\n\nlunr.QueryLexer.prototype.sliceString = function () {\n  var subSlices = [],\n      sliceStart = this.start,\n      sliceEnd = this.pos\n\n  for (var i = 0; i < this.escapeCharPositions.length; i++) {\n    sliceEnd = this.escapeCharPositions[i]\n    subSlices.push(this.str.slice(sliceStart, sliceEnd))\n    sliceStart = sliceEnd + 1\n  }\n\n  subSlices.push(this.str.slice(sliceStart, this.pos))\n  this.escapeCharPositions.length = 0\n\n  return subSlices.join('')\n}\n\nlunr.QueryLexer.prototype.emit = function (type) {\n  this.lexemes.push({\n    type: type,\n    str: this.sliceString(),\n    start: this.start,\n    end: this.pos\n  })\n\n  this.start = this.pos\n}\n\nlunr.QueryLexer.prototype.escapeCharacter = function () {\n  this.escapeCharPositions.push(this.pos - 1)\n  this.pos += 1\n}\n\nlunr.QueryLexer.prototype.next = function () {\n  if (this.pos >= this.length) {\n    return lunr.QueryLexer.EOS\n  }\n\n  var char = this.str.charAt(this.pos)\n  this.pos += 1\n  return char\n}\n\nlunr.QueryLexer.prototype.width = function () {\n  return this.pos - this.start\n}\n\nlunr.QueryLexer.prototype.ignore = function () {\n  if (this.start == this.pos) {\n    this.pos += 1\n  }\n\n  this.start = this.pos\n}\n\nlunr.QueryLexer.prototype.backup = function () {\n  this.pos -= 1\n}\n\nlunr.QueryLexer.prototype.acceptDigitRun = function () {\n  var char, charCode\n\n  do {\n    char = this.next()\n    charCode = char.charCodeAt(0)\n  } while (charCode > 47 && charCode < 58)\n\n  if (char != lunr.QueryLexer.EOS) {\n    this.backup()\n  }\n}\n\nlunr.QueryLexer.prototype.more = function () {\n  return this.pos < this.length\n}\n\nlunr.QueryLexer.EOS = 'EOS'\nlunr.QueryLexer.FIELD = 'FIELD'\nlunr.QueryLexer.TERM = 'TERM'\nlunr.QueryLexer.EDIT_DISTANCE = 'EDIT_DISTANCE'\nlunr.QueryLexer.BOOST = 'BOOST'\nlunr.QueryLexer.PRESENCE = 'PRESENCE'\n\nlunr.QueryLexer.lexField = function (lexer) {\n  lexer.backup()\n  lexer.emit(lunr.QueryLexer.FIELD)\n  lexer.ignore()\n  return lunr.QueryLexer.lexText\n}\n\nlunr.QueryLexer.lexTerm = function (lexer) {\n  if (lexer.width() > 1) {\n    lexer.backup()\n    lexer.emit(lunr.QueryLexer.TERM)\n  }\n\n  lexer.ignore()\n\n  if (lexer.more()) {\n    return lunr.QueryLexer.lexText\n  }\n}\n\nlunr.QueryLexer.lexEditDistance = function (lexer) {\n  lexer.ignore()\n  lexer.acceptDigitRun()\n  lexer.emit(lunr.QueryLexer.EDIT_DISTANCE)\n  return lunr.QueryLexer.lexText\n}\n\nlunr.QueryLexer.lexBoost = function (lexer) {\n  lexer.ignore()\n  lexer.acceptDigitRun()\n  lexer.emit(lunr.QueryLexer.BOOST)\n  return lunr.QueryLexer.lexText\n}\n\nlunr.QueryLexer.lexEOS = function (lexer) {\n  if (lexer.width() > 0) {\n    lexer.emit(lunr.QueryLexer.TERM)\n  }\n}\n\n// This matches the separator used when tokenising fields\n// within a document. These should match otherwise it is\n// not possible to search for some tokens within a document.\n//\n// It is possible for the user to change the separator on the\n// tokenizer so it _might_ clash with any other of the special\n// characters already used within the search string, e.g. :.\n//\n// This means that it is possible to change the separator in\n// such a way that makes some words unsearchable using a search\n// string.\nlunr.QueryLexer.termSeparator = lunr.tokenizer.separator\n\nlunr.QueryLexer.lexText = function (lexer) {\n  while (true) {\n    var char = lexer.next()\n\n    if (char == lunr.QueryLexer.EOS) {\n      return lunr.QueryLexer.lexEOS\n    }\n\n    // Escape character is '\\'\n    if (char.charCodeAt(0) == 92) {\n      lexer.escapeCharacter()\n      continue\n    }\n\n    if (char == \":\") {\n      return lunr.QueryLexer.lexField\n    }\n\n    if (char == \"~\") {\n      lexer.backup()\n      if (lexer.width() > 0) {\n        lexer.emit(lunr.QueryLexer.TERM)\n      }\n      return lunr.QueryLexer.lexEditDistance\n    }\n\n    if (char == \"^\") {\n      lexer.backup()\n      if (lexer.width() > 0) {\n        lexer.emit(lunr.QueryLexer.TERM)\n      }\n      return lunr.QueryLexer.lexBoost\n    }\n\n    // \"+\" indicates term presence is required\n    // checking for length to ensure that only\n    // leading \"+\" are considered\n    if (char == \"+\" && lexer.width() === 1) {\n      lexer.emit(lunr.QueryLexer.PRESENCE)\n      return lunr.QueryLexer.lexText\n    }\n\n    // \"-\" indicates term presence is prohibited\n    // checking for length to ensure that only\n    // leading \"-\" are considered\n    if (char == \"-\" && lexer.width() === 1) {\n      lexer.emit(lunr.QueryLexer.PRESENCE)\n      return lunr.QueryLexer.lexText\n    }\n\n    if (char.match(lunr.QueryLexer.termSeparator)) {\n      return lunr.QueryLexer.lexTerm\n    }\n  }\n}\n\nlunr.QueryParser = function (str, query) {\n  this.lexer = new lunr.QueryLexer (str)\n  this.query = query\n  this.currentClause = {}\n  this.lexemeIdx = 0\n}\n\nlunr.QueryParser.prototype.parse = function () {\n  this.lexer.run()\n  this.lexemes = this.lexer.lexemes\n\n  var state = lunr.QueryParser.parseClause\n\n  while (state) {\n    state = state(this)\n  }\n\n  return this.query\n}\n\nlunr.QueryParser.prototype.peekLexeme = function () {\n  return this.lexemes[this.lexemeIdx]\n}\n\nlunr.QueryParser.prototype.consumeLexeme = function () {\n  var lexeme = this.peekLexeme()\n  this.lexemeIdx += 1\n  return lexeme\n}\n\nlunr.QueryParser.prototype.nextClause = function () {\n  var completedClause = this.currentClause\n  this.query.clause(completedClause)\n  this.currentClause = {}\n}\n\nlunr.QueryParser.parseClause = function (parser) {\n  var lexeme = parser.peekLexeme()\n\n  if (lexeme == undefined) {\n    return\n  }\n\n  switch (lexeme.type) {\n    case lunr.QueryLexer.PRESENCE:\n      return lunr.QueryParser.parsePresence\n    case lunr.QueryLexer.FIELD:\n      return lunr.QueryParser.parseField\n    case lunr.QueryLexer.TERM:\n      return lunr.QueryParser.parseTerm\n    default:\n      var errorMessage = \"expected either a field or a term, found \" + lexeme.type\n\n      if (lexeme.str.length >= 1) {\n        errorMessage += \" with value '\" + lexeme.str + \"'\"\n      }\n\n      throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n  }\n}\n\nlunr.QueryParser.parsePresence = function (parser) {\n  var lexeme = parser.consumeLexeme()\n\n  if (lexeme == undefined) {\n    return\n  }\n\n  switch (lexeme.str) {\n    case \"-\":\n      parser.currentClause.presence = lunr.Query.presence.PROHIBITED\n      break\n    case \"+\":\n      parser.currentClause.presence = lunr.Query.presence.REQUIRED\n      break\n    default:\n      var errorMessage = \"unrecognised presence operator'\" + lexeme.str + \"'\"\n      throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n  }\n\n  var nextLexeme = parser.peekLexeme()\n\n  if (nextLexeme == undefined) {\n    var errorMessage = \"expecting term or field, found nothing\"\n    throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n  }\n\n  switch (nextLexeme.type) {\n    case lunr.QueryLexer.FIELD:\n      return lunr.QueryParser.parseField\n    case lunr.QueryLexer.TERM:\n      return lunr.QueryParser.parseTerm\n    default:\n      var errorMessage = \"expecting term or field, found '\" + nextLexeme.type + \"'\"\n      throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n  }\n}\n\nlunr.QueryParser.parseField = function (parser) {\n  var lexeme = parser.consumeLexeme()\n\n  if (lexeme == undefined) {\n    return\n  }\n\n  if (parser.query.allFields.indexOf(lexeme.str) == -1) {\n    var possibleFields = parser.query.allFields.map(function (f) { return \"'\" + f + \"'\" }).join(', '),\n        errorMessage = \"unrecognised field '\" + lexeme.str + \"', possible fields: \" + possibleFields\n\n    throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n  }\n\n  parser.currentClause.fields = [lexeme.str]\n\n  var nextLexeme = parser.peekLexeme()\n\n  if (nextLexeme == undefined) {\n    var errorMessage = \"expecting term, found nothing\"\n    throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n  }\n\n  switch (nextLexeme.type) {\n    case lunr.QueryLexer.TERM:\n      return lunr.QueryParser.parseTerm\n    default:\n      var errorMessage = \"expecting term, found '\" + nextLexeme.type + \"'\"\n      throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n  }\n}\n\nlunr.QueryParser.parseTerm = function (parser) {\n  var lexeme = parser.consumeLexeme()\n\n  if (lexeme == undefined) {\n    return\n  }\n\n  parser.currentClause.term = lexeme.str.toLowerCase()\n\n  if (lexeme.str.indexOf(\"*\") != -1) {\n    parser.currentClause.usePipeline = false\n  }\n\n  var nextLexeme = parser.peekLexeme()\n\n  if (nextLexeme == undefined) {\n    parser.nextClause()\n    return\n  }\n\n  switch (nextLexeme.type) {\n    case lunr.QueryLexer.TERM:\n      parser.nextClause()\n      return lunr.QueryParser.parseTerm\n    case lunr.QueryLexer.FIELD:\n      parser.nextClause()\n      return lunr.QueryParser.parseField\n    case lunr.QueryLexer.EDIT_DISTANCE:\n      return lunr.QueryParser.parseEditDistance\n    case lunr.QueryLexer.BOOST:\n      return lunr.QueryParser.parseBoost\n    case lunr.QueryLexer.PRESENCE:\n      parser.nextClause()\n      return lunr.QueryParser.parsePresence\n    default:\n      var errorMessage = \"Unexpected lexeme type '\" + nextLexeme.type + \"'\"\n      throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n  }\n}\n\nlunr.QueryParser.parseEditDistance = function (parser) {\n  var lexeme = parser.consumeLexeme()\n\n  if (lexeme == undefined) {\n    return\n  }\n\n  var editDistance = parseInt(lexeme.str, 10)\n\n  if (isNaN(editDistance)) {\n    var errorMessage = \"edit distance must be numeric\"\n    throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n  }\n\n  parser.currentClause.editDistance = editDistance\n\n  var nextLexeme = parser.peekLexeme()\n\n  if (nextLexeme == undefined) {\n    parser.nextClause()\n    return\n  }\n\n  switch (nextLexeme.type) {\n    case lunr.QueryLexer.TERM:\n      parser.nextClause()\n      return lunr.QueryParser.parseTerm\n    case lunr.QueryLexer.FIELD:\n      parser.nextClause()\n      return lunr.QueryParser.parseField\n    case lunr.QueryLexer.EDIT_DISTANCE:\n      return lunr.QueryParser.parseEditDistance\n    case lunr.QueryLexer.BOOST:\n      return lunr.QueryParser.parseBoost\n    case lunr.QueryLexer.PRESENCE:\n      parser.nextClause()\n      return lunr.QueryParser.parsePresence\n    default:\n      var errorMessage = \"Unexpected lexeme type '\" + nextLexeme.type + \"'\"\n      throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n  }\n}\n\nlunr.QueryParser.parseBoost = function (parser) {\n  var lexeme = parser.consumeLexeme()\n\n  if (lexeme == undefined) {\n    return\n  }\n\n  var boost = parseInt(lexeme.str, 10)\n\n  if (isNaN(boost)) {\n    var errorMessage = \"boost must be numeric\"\n    throw new lunr.QueryParseError (errorMessage, lexeme.start, lexeme.end)\n  }\n\n  parser.currentClause.boost = boost\n\n  var nextLexeme = parser.peekLexeme()\n\n  if (nextLexeme == undefined) {\n    parser.nextClause()\n    return\n  }\n\n  switch (nextLexeme.type) {\n    case lunr.QueryLexer.TERM:\n      parser.nextClause()\n      return lunr.QueryParser.parseTerm\n    case lunr.QueryLexer.FIELD:\n      parser.nextClause()\n      return lunr.QueryParser.parseField\n    case lunr.QueryLexer.EDIT_DISTANCE:\n      return lunr.QueryParser.parseEditDistance\n    case lunr.QueryLexer.BOOST:\n      return lunr.QueryParser.parseBoost\n    case lunr.QueryLexer.PRESENCE:\n      parser.nextClause()\n      return lunr.QueryParser.parsePresence\n    default:\n      var errorMessage = \"Unexpected lexeme type '\" + nextLexeme.type + \"'\"\n      throw new lunr.QueryParseError (errorMessage, nextLexeme.start, nextLexeme.end)\n  }\n}\n\n  /**\n   * export the module via AMD, CommonJS or as a browser global\n   * Export code from https://github.com/umdjs/umd/blob/master/returnExports.js\n   */\n  ;(function (root, factory) {\n    if (true) {\n      // AMD. Register as an anonymous module.\n      !(__WEBPACK_AMD_DEFINE_FACTORY__ = (factory),\n\t\t__WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ?\n\t\t(__WEBPACK_AMD_DEFINE_FACTORY__.call(exports, __webpack_require__, exports, module)) :\n\t\t__WEBPACK_AMD_DEFINE_FACTORY__),\n\t\t__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__))\n    } else {}\n  }(this, function () {\n    /**\n     * Just return a value to define the module export.\n     * This example returns an object, but the module\n     * can return a function as the exported value.\n     */\n    return lunr\n  }))\n})();\n\n\n//# sourceURL=webpack:///../node_modules/lunr/lunr.js?");
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-eval("__webpack_require__.r(__webpack_exports__);\n/* harmony export */ __webpack_require__.d(__webpack_exports__, {\n/* harmony export */   \"EventTarget\": () => /* binding */ EventTarget\n/* harmony export */ });\n/**\n * TypeDoc event target class.\n */\nvar EventTarget = /** @class */ (function () {\n    function EventTarget() {\n        this.listeners = {};\n    }\n    EventTarget.prototype.addEventListener = function (type, callback) {\n        if (!(type in this.listeners)) {\n            this.listeners[type] = [];\n        }\n        this.listeners[type].push(callback);\n    };\n    EventTarget.prototype.removeEventListener = function (type, callback) {\n        if (!(type in this.listeners)) {\n            return;\n        }\n        var stack = this.listeners[type];\n        for (var i = 0, l = stack.length; i < l; i++) {\n            if (stack[i] === callback) {\n                stack.splice(i, 1);\n                return;\n            }\n        }\n    };\n    EventTarget.prototype.dispatchEvent = function (event) {\n        if (!(event.type in this.listeners)) {\n            return true;\n        }\n        var stack = this.listeners[event.type].slice();\n        for (var i = 0, l = stack.length; i < l; i++) {\n            stack[i].call(this, event);\n        }\n        return !event.defaultPrevented;\n    };\n    return EventTarget;\n}());\n\n\n\n//# sourceURL=webpack:///./default/assets/js/src/typedoc/EventTarget.ts?");
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-  !*** ./default/assets/js/src/typedoc/components/Filter.ts ***!
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Object.create(b) : (__.prototype = b.prototype, new __());\n    };\n})();\n\n\nvar FilterItem = /** @class */ (function () {\n    function FilterItem(key, value) {\n        this.key = key;\n        this.value = value;\n        this.defaultValue = value;\n        this.initialize();\n        if (window.localStorage[this.key]) {\n            this.setValue(this.fromLocalStorage(window.localStorage[this.key]));\n        }\n    }\n    FilterItem.prototype.initialize = function () { };\n    FilterItem.prototype.setValue = function (value) {\n        if (this.value == value)\n            return;\n        var oldValue = this.value;\n        this.value = value;\n        window.localStorage[this.key] = this.toLocalStorage(value);\n        this.handleValueChange(oldValue, value);\n    };\n    return FilterItem;\n}());\nvar FilterItemCheckbox = /** @class */ (function (_super) {\n    __extends(FilterItemCheckbox, _super);\n    function FilterItemCheckbox() {\n        return _super !== null && _super.apply(this, arguments) || this;\n    }\n    FilterItemCheckbox.prototype.initialize = function () {\n        var _this = this;\n        var checkbox = document.querySelector(\"#tsd-filter-\" + this.key);\n        if (!checkbox)\n            return;\n        this.checkbox = checkbox;\n        this.checkbox.addEventListener(\"change\", function () {\n            _this.setValue(_this.checkbox.checked);\n        });\n    };\n    FilterItemCheckbox.prototype.handleValueChange = function (oldValue, newValue) {\n        if (!this.checkbox)\n            return;\n        this.checkbox.checked = this.value;\n        document.documentElement.classList.toggle(\"toggle-\" + this.key, this.value != this.defaultValue);\n    };\n    FilterItemCheckbox.prototype.fromLocalStorage = function (value) {\n        return value == \"true\";\n    };\n    FilterItemCheckbox.prototype.toLocalStorage = function (value) {\n        return value ? \"true\" : \"false\";\n    };\n    return FilterItemCheckbox;\n}(FilterItem));\nvar FilterItemSelect = /** @class */ (function (_super) {\n    __extends(FilterItemSelect, _super);\n    function FilterItemSelect() {\n        return _super !== null && _super.apply(this, arguments) || this;\n    }\n    FilterItemSelect.prototype.initialize = function () {\n        var _this = this;\n        document.documentElement.classList.add(\"toggle-\" + this.key + this.value);\n        var select = document.querySelector(\"#tsd-filter-\" + this.key);\n        if (!select)\n            return;\n        this.select = select;\n        var onActivate = function () {\n            _this.select.classList.add(\"active\");\n        };\n        var onDeactivate = function () {\n            _this.select.classList.remove(\"active\");\n        };\n        this.select.addEventListener(_utils_pointer__WEBPACK_IMPORTED_MODULE_1__.pointerDown, onActivate);\n        this.select.addEventListener(\"mouseover\", onActivate);\n        this.select.addEventListener(\"mouseleave\", onDeactivate);\n        this.select.querySelectorAll(\"li\").forEach(function (el) {\n            el.addEventListener(_utils_pointer__WEBPACK_IMPORTED_MODULE_1__.pointerUp, function (e) {\n                select.classList.remove(\"active\");\n                _this.setValue(e.target.dataset.value || \"\");\n            });\n        });\n        document.addEventListener(_utils_pointer__WEBPACK_IMPORTED_MODULE_1__.pointerDown, function (e) {\n            if (_this.select.contains(e.target))\n                return;\n            _this.select.classList.remove(\"active\");\n        });\n    };\n    FilterItemSelect.prototype.handleValueChange = function (oldValue, newValue) {\n        this.select.querySelectorAll(\"li.selected\").forEach(function (el) {\n            el.classList.remove(\"selected\");\n        });\n        var selected = this.select.querySelector('li[data-value=\"' + newValue + '\"]');\n        var label = this.select.querySelector(\".tsd-select-label\");\n        if (selected && label) {\n            selected.classList.add(\"selected\");\n            label.textContent = selected.textContent;\n        }\n        document.documentElement.classList.remove(\"toggle-\" + oldValue);\n        document.documentElement.classList.add(\"toggle-\" + newValue);\n    };\n    FilterItemSelect.prototype.fromLocalStorage = function (value) {\n        return value;\n    };\n    FilterItemSelect.prototype.toLocalStorage = function (value) {\n        return value;\n    };\n    return FilterItemSelect;\n}(FilterItem));\nvar Filter = /** @class */ (function (_super) {\n    __extends(Filter, _super);\n    function Filter(options) {\n        var _this = _super.call(this, options) || this;\n        _this.optionVisibility = new FilterItemSelect(\"visibility\", \"private\");\n        _this.optionInherited = new FilterItemCheckbox(\"inherited\", true);\n        _this.optionExternals = new FilterItemCheckbox(\"externals\", true);\n        return _this;\n    }\n    Filter.isSupported = function () {\n        try {\n            return typeof window.localStorage != \"undefined\";\n        }\n        catch (e) {\n            return false;\n        }\n    };\n    return Filter;\n}(_Component__WEBPACK_IMPORTED_MODULE_0__.Component));\n\n\n\n//# sourceURL=webpack:///./default/assets/js/src/typedoc/components/Filter.ts?");
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});\n    results.addEventListener(\"mouseup\", function () {\n        resultClicked = false;\n        searchEl.classList.remove(\"has-focus\");\n    });\n    field.addEventListener(\"focus\", function () { return searchEl.classList.add(\"has-focus\"); });\n    field.addEventListener(\"blur\", function () {\n        if (!resultClicked) {\n            resultClicked = false;\n            searchEl.classList.remove(\"has-focus\");\n        }\n    });\n    var state = {\n        base: searchEl.dataset.base + \"/\",\n    };\n    bindEvents(searchEl, results, field, state);\n}\nfunction bindEvents(searchEl, results, field, state) {\n    field.addEventListener(\"input\", (0,_utils_debounce__WEBPACK_IMPORTED_MODULE_0__.debounce)(function () {\n        updateResults(searchEl, results, field, state);\n    }, 200));\n    var preventPress = false;\n    field.addEventListener(\"keydown\", function (e) {\n        preventPress = true;\n        if (e.key == \"Enter\") {\n            gotoCurrentResult(results, field);\n        }\n        else if (e.key == \"Escape\") {\n            field.blur();\n        }\n        else if (e.key == \"ArrowUp\") {\n            setCurrentResult(results, -1);\n        }\n        else if (e.key === \"ArrowDown\") {\n            setCurrentResult(results, 1);\n        }\n        else {\n            preventPress = false;\n        }\n    });\n    field.addEventListener(\"keypress\", function (e) {\n        if (preventPress)\n            e.preventDefault();\n    });\n    /**\n     * Start searching by pressing slash.\n     */\n    document.body.addEventListener(\"keydown\", function (e) {\n        if (e.altKey || e.ctrlKey || e.metaKey)\n            return;\n        if (!field.matches(\":focus\") && e.key === \"/\") {\n            field.focus();\n            e.preventDefault();\n        }\n    });\n}\nfunction checkIndex(state, searchEl) {\n    if (state.index)\n        return;\n    if (window.searchData) {\n        searchEl.classList.remove(\"loading\");\n        searchEl.classList.add(\"ready\");\n        state.data = window.searchData;\n        state.index = lunr__WEBPACK_IMPORTED_MODULE_1__.Index.load(window.searchData.index);\n    }\n}\nfunction updateResults(searchEl, results, query, state) {\n    checkIndex(state, searchEl);\n    // Don't clear results if loading state is not ready,\n    // because loading or error message can be removed.\n    if (!state.index || !state.data)\n        return;\n    results.textContent = \"\";\n    var searchText = query.value.trim();\n    // Perform a wildcard search\n    var res = state.index.search(\"*\" + searchText + \"*\");\n    for (var i = 0, c = Math.min(10, res.length); i < c; i++) {\n        var row = state.data.rows[Number(res[i].ref)];\n        // Bold the matched part of the query in the search results\n        var name_1 = boldMatches(row.name, searchText);\n        if (row.parent) {\n            name_1 = \"<span class=\\\"parent\\\">\" + boldMatches(row.parent, searchText) + \".</span>\" + name_1;\n        }\n        var item = document.createElement(\"li\");\n        item.classList.value = row.classes;\n        var anchor = document.createElement(\"a\");\n        anchor.href = state.base + row.url;\n        anchor.classList.add(\"tsd-kind-icon\");\n        anchor.innerHTML = name_1;\n        item.append(anchor);\n        results.appendChild(item);\n    }\n}\n/**\n * Move the highlight within the result set.\n */\nfunction setCurrentResult(results, dir) {\n    var current = results.querySelector(\".current\");\n    if (!current) {\n        current = results.querySelector(dir == 1 ? \"li:first-child\" : \"li:last-child\");\n        if (current) {\n            current.classList.add(\"current\");\n        }\n    }\n    else {\n        var rel = dir == 1\n            ? current.nextElementSibling\n            : current.previousElementSibling;\n        if (rel) {\n            current.classList.remove(\"current\");\n            rel.classList.add(\"current\");\n        }\n    }\n}\n/**\n * Navigate to the highlighted result.\n */\nfunction gotoCurrentResult(results, field) {\n    var current = results.querySelector(\".current\");\n    if (!current) {\n        current = results.querySelector(\"li:first-child\");\n    }\n    if (current) {\n        var link = current.querySelector(\"a\");\n        if (link) {\n            window.location.href = link.href;\n        }\n        field.blur();\n    }\n}\nfunction boldMatches(text, search) {\n    if (search === \"\") {\n        return text;\n    }\n    var lowerText = text.toLocaleLowerCase();\n    var lowerSearch = search.toLocaleLowerCase();\n    var parts = [];\n    var lastIndex = 0;\n    var index = lowerText.indexOf(lowerSearch);\n    while (index != -1) {\n        parts.push(escapeHtml(text.substring(lastIndex, index)), \"<b>\" + escapeHtml(text.substring(index, index + lowerSearch.length)) + \"</b>\");\n        lastIndex = index + lowerSearch.length;\n        index = lowerText.indexOf(lowerSearch, lastIndex);\n    }\n    parts.push(escapeHtml(text.substring(lastIndex)));\n    return parts.join(\"\");\n}\nvar SPECIAL_HTML = {\n    \"&\": \"&amp;\",\n    \"<\": \"&lt;\",\n    \">\": \"&gt;\",\n    \"'\": \"&#039;\",\n    '\"': \"&quot;\",\n};\nfunction escapeHtml(text) {\n    return text.replace(/[&<>\"'\"]/g, function (match) { return SPECIAL_HTML[match]; });\n}\n\n\n//# sourceURL=webpack:///./default/assets/js/src/typedoc/components/Search.ts?");
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-eval("__webpack_require__.r(__webpack_exports__);\n/* harmony export */ __webpack_require__.d(__webpack_exports__, {\n/* harmony export */   \"Signature\": () => /* binding */ Signature\n/* harmony export */ });\n/* harmony import */ var _Component__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../Component */ \"./default/assets/js/src/typedoc/Component.ts\");\n/* harmony import */ var _services_Viewport__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../services/Viewport */ \"./default/assets/js/src/typedoc/services/Viewport.ts\");\nvar __extends = (undefined && undefined.__extends) || (function () {\n    var extendStatics = function (d, b) {\n        extendStatics = Object.setPrototypeOf ||\n            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\n        return extendStatics(d, b);\n    };\n    return function (d, b) {\n        extendStatics(d, b);\n        function __() { this.constructor = d; }\n        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n    };\n})();\n\n\n/**\n * Holds a signature and its description.\n */\nvar SignatureGroup = /** @class */ (function () {\n    /**\n     * Create a new SignatureGroup instance.\n     *\n     * @param signature    The target signature.\n     * @param description  The description for the signature.\n     */\n    function SignatureGroup(signature, description) {\n        this.signature = signature;\n        this.description = description;\n    }\n    /**\n     * Add the given class to all elements of the group.\n     *\n     * @param className  The class name to add.\n     */\n    SignatureGroup.prototype.addClass = function (className) {\n        this.signature.classList.add(className);\n        this.description.classList.add(className);\n        return this;\n    };\n    /**\n     * Remove the given class from all elements of the group.\n     *\n     * @param className  The class name to remove.\n     */\n    SignatureGroup.prototype.removeClass = function (className) {\n        this.signature.classList.remove(className);\n        this.description.classList.remove(className);\n        return this;\n    };\n    return SignatureGroup;\n}());\n/**\n * Controls the tab like behaviour of methods and functions with multiple signatures.\n */\nvar Signature = /** @class */ (function (_super) {\n    __extends(Signature, _super);\n    /**\n     * Create a new Signature instance.\n     *\n     * @param options  Backbone view constructor options.\n     */\n    function Signature(options) {\n        var _this = _super.call(this, options) || this;\n        /**\n         * List of found signature groups.\n         */\n        _this.groups = [];\n        /**\n         * The index of the currently displayed signature.\n         */\n        _this.index = -1;\n        _this.createGroups();\n        if (_this.container) {\n            _this.el.classList.add(\"active\");\n            Array.from(_this.el.children).forEach(function (signature) {\n                signature.addEventListener(\"touchstart\", function (event) {\n                    return _this.onClick(event);\n                });\n                signature.addEventListener(\"click\", function (event) {\n                    return _this.onClick(event);\n                });\n            });\n            _this.container.classList.add(\"active\");\n            _this.setIndex(0);\n        }\n        return _this;\n    }\n    /**\n     * Set the index of the active signature.\n     *\n     * @param index  The index of the signature to activate.\n     */\n    Signature.prototype.setIndex = function (index) {\n        if (index < 0)\n            index = 0;\n        if (index > this.groups.length - 1)\n            index = this.groups.length - 1;\n        if (this.index == index)\n            return;\n        var to = this.groups[index];\n        if (this.index > -1) {\n            var from_1 = this.groups[this.index];\n            from_1.removeClass(\"current\").addClass(\"fade-out\");\n            to.addClass(\"current\");\n            to.addClass(\"fade-in\");\n            _services_Viewport__WEBPACK_IMPORTED_MODULE_1__.Viewport.instance.triggerResize();\n            setTimeout(function () {\n                from_1.removeClass(\"fade-out\");\n                to.removeClass(\"fade-in\");\n            }, 300);\n        }\n        else {\n            to.addClass(\"current\");\n            _services_Viewport__WEBPACK_IMPORTED_MODULE_1__.Viewport.instance.triggerResize();\n        }\n        this.index = index;\n    };\n    /**\n     * Find all signature/description groups.\n     */\n    Signature.prototype.createGroups = function () {\n        var signatures = this.el.children;\n        if (signatures.length < 2)\n            return;\n        this.container = this.el.nextElementSibling;\n        var descriptions = this.container.children;\n        this.groups = [];\n        for (var index = 0; index < signatures.length; index++) {\n            this.groups.push(new SignatureGroup(signatures[index], descriptions[index]));\n        }\n    };\n    /**\n     * Triggered when the user clicks onto a signature header.\n     *\n     * @param e  The related event object.\n     */\n    Signature.prototype.onClick = function (e) {\n        var _this = this;\n        this.groups.forEach(function (group, index) {\n            if (group.signature === e.currentTarget) {\n                _this.setIndex(index);\n            }\n        });\n    };\n    return Signature;\n}(_Component__WEBPACK_IMPORTED_MODULE_0__.Component));\n\n\n\n//# sourceURL=webpack:///./default/assets/js/src/typedoc/components/Signature.ts?");
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-  !*** ./default/assets/js/src/typedoc/components/Toggle.ts ***!
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n}},t.stopWordFilter=t.generateStopWordFilter(["a","able","about","across","after","all","almost","also","am","among","an","and","any","are","as","at","be","because","been","but","by","can","cannot","could","dear","did","do","does","either","else","ever","every","for","from","get","got","had","has","have","he","her","hers","him","his","how","however","i","if","in","into","is","it","its","just","least","let","like","likely","may","me","might","most","must","my","neither","no","nor","not","of","off","often","on","only","or","other","our","own","rather","said","say","says","she","should","since","so","some","than","that","the","their","them","then","there","these","they","this","tis","to","too","twas","us","wants","was","we","were","what","when","where","which","while","who","whom","why","will","with","would","yet","you","your"]),t.Pipeline.registerFunction(t.stopWordFilter,"stopWordFilter");t.trimmer=function(e){return e.update(function(r){return r.replace(/^\W+/,"").replace(/\W+$/,"")})},t.Pipeline.registerFunction(t.trimmer,"trimmer");t.TokenSet=function(){this.final=!1,this.edges={},this.id=t.TokenSet._nextId,t.TokenSet._nextId+=1},t.TokenSet._nextId=1,t.TokenSet.fromArray=function(e){for(var r=new t.TokenSet.Builder,n=0,i=e.length;n<i;n++)r.insert(e[n]);return r.finish(),r.root},t.TokenSet.fromClause=function(e){return"editDistance"in e?t.TokenSet.fromFuzzyString(e.term,e.editDistance):t.TokenSet.fromString(e.term)},t.TokenSet.fromFuzzyString=function(e,r){for(var n=new t.TokenSet,i=[{node:n,editsRemaining:r,str:e}];i.length;){var s=i.pop();if(s.str.length>0){var o=s.str.charAt(0),a;o in s.node.edges?a=s.node.edges[o]:(a=new t.TokenSet,s.node.edges[o]=a),s.str.length==1&&(a.final=!0),i.push({node:a,editsRemaining:s.editsRemaining,str:s.str.slice(1)})}if(s.editsRemaining!=0){if("*"in s.node.edges)var u=s.node.edges["*"];else{var u=new t.TokenSet;s.node.edges["*"]=u}if(s.str.length==0&&(u.final=!0),i.push({node:u,editsRemaining:s.editsRemaining-1,str:s.str}),s.str.length>1&&i.push({node:s.node,editsRemaining:s.editsRemaining-1,str:s.str.slice(1)}),s.str.length==1&&(s.node.final=!0),s.str.length>=1){if("*"in s.node.edges)var l=s.node.edges["*"];else{var l=new t.TokenSet;s.node.edges["*"]=l}s.str.length==1&&(l.final=!0),i.push({node:l,editsRemaining:s.editsRemaining-1,str:s.str.slice(1)})}if(s.str.length>1){var h=s.str.charAt(0),p=s.str.charAt(1),v;p in s.node.edges?v=s.node.edges[p]:(v=new t.TokenSet,s.node.edges[p]=v),s.str.length==1&&(v.final=!0),i.push({node:v,editsRemaining:s.editsRemaining-1,str:h+s.str.slice(2)})}}}return n},t.TokenSet.fromString=function(e){for(var r=new t.TokenSet,n=r,i=0,s=e.length;i<s;i++){var o=e[i],a=i==s-1;if(o=="*")r.edges[o]=r,r.final=a;else{var u=new t.TokenSet;u.final=a,r.edges[o]=u,r=u}}return n},t.TokenSet.prototype.toArray=function(){for(var e=[],r=[{prefix:"",node:this}];r.length;){var n=r.pop(),i=Object.keys(n.node.edges),s=i.length;n.node.final&&(n.prefix.charAt(0),e.push(n.prefix));for(var o=0;o<s;o++){var a=i[o];r.push({prefix:n.prefix.concat(a),node:n.node.edges[a]})}}return e},t.TokenSet.prototype.toString=function(){if(this._str)return this._str;for(var e=this.final?"1":"0",r=Object.keys(this.edges).sort(),n=r.length,i=0;i<n;i++){var s=r[i],o=this.edges[s];e=e+s+o.id}return e},t.TokenSet.prototype.intersect=function(e){for(var r=new t.TokenSet,n=void 0,i=[{qNode:e,output:r,node:this}];i.length;){n=i.pop();for(var s=Object.keys(n.qNode.edges),o=s.length,a=Object.keys(n.node.edges),u=a.length,l=0;l<o;l++)for(var h=s[l],p=0;p<u;p++){var v=a[p];if(v==h||h=="*"){var b=n.node.edges[v],y=n.qNode.edges[h],E=b.final&&y.final,f=void 0;v in n.output.edges?(f=n.output.edges[v],f.final=f.final||E):(f=new t.TokenSet,f.final=E,n.output.edges[v]=f),i.push({qNode:y,output:f,node:b})}}}return r},t.TokenSet.Builder=function(){this.previousWord="",this.root=new t.TokenSet,this.uncheckedNodes=[],this.minimizedNodes={}},t.TokenSet.Builder.prototype.insert=function(e){var r,n=0;if(e<this.previousWord)throw new Error("Out of order word insertion");for(var i=0;i<e.length&&i<this.previousWord.length&&e[i]==this.previousWord[i];i++)n++;this.minimize(n),this.uncheckedNodes.length==0?r=this.root:r=this.uncheckedNodes[this.uncheckedNodes.length-1].child;for(var i=n;i<e.length;i++){var s=new t.TokenSet,o=e[i];r.edges[o]=s,this.uncheckedNodes.push({parent:r,char:o,child:s}),r=s}r.final=!0,this.previousWord=e},t.TokenSet.Builder.prototype.finish=function(){this.minimize(0)},t.TokenSet.Builder.prototype.minimize=function(e){for(var r=this.uncheckedNodes.length-1;r>=e;r--){var n=this.uncheckedNodes[r],i=n.child.toString();i in this.minimizedNodes?n.parent.edges[n.char]=this.minimizedNodes[i]:(n.child._str=i,this.minimizedNodes[i]=n.child),this.uncheckedNodes.pop()}};t.Index=function(e){this.invertedIndex=e.invertedIndex,this.fieldVectors=e.fieldVectors,this.tokenSet=e.tokenSet,this.fields=e.fields,this.pipeline=e.pipeline},t.Index.prototype.search=function(e){return this.query(function(r){var n=new t.QueryParser(e,r);n.parse()})},t.Index.prototype.query=function(e){for(var r=new t.Query(this.fields),n=Object.create(null),i=Object.create(null),s=Object.create(null),o=Object.create(null),a=Object.create(null),u=0;u<this.fields.length;u++)i[this.fields[u]]=new t.Vector;e.call(r,r);for(var u=0;u<r.clauses.length;u++){var l=r.clauses[u],h=null,p=t.Set.empty;l.usePipeline?h=this.pipeline.runString(l.term,{fields:l.fields}):h=[l.term];for(var v=0;v<h.length;v++){var b=h[v];l.term=b;var y=t.TokenSet.fromClause(l),E=this.tokenSet.intersect(y).toArray();if(E.length===0&&l.presence===t.Query.presence.REQUIRED){for(var f=0;f<l.fields.length;f++){var m=l.fields[f];o[m]=t.Set.empty}break}for(var T=0;T<E.length;T++)for(var w=E[T],k=this.invertedIndex[w],M=k._index,f=0;f<l.fields.length;f++){var m=l.fields[f],j=k[m],V=Object.keys(j),B=w+"/"+m,q=new t.Set(V);if(l.presence==t.Query.presence.REQUIRED&&(p=p.union(q),o[m]===void 0&&(o[m]=t.Set.complete)),l.presence==t.Query.presence.PROHIBITED){a[m]===void 0&&(a[m]=t.Set.empty),a[m]=a[m].union(q);continue}if(i[m].upsert(M,l.boost,function(Qe,Ie){return Qe+Ie}),!s[B]){for(var H=0;H<V.length;H++){var $=V[H],P=new t.FieldRef($,m),W=j[$],U;(U=n[P])===void 0?n[P]=new t.MatchData(w,m,W):U.add(w,m,W)}s[B]=!0}}}if(l.presence===t.Query.presence.REQUIRED)for(var f=0;f<l.fields.length;f++){var m=l.fields[f];o[m]=o[m].intersect(p)}}for(var z=t.Set.complete,F=t.Set.empty,u=0;u<this.fields.length;u++){var m=this.fields[u];o[m]&&(z=z.intersect(o[m])),a[m]&&(F=F.union(a[m]))}var c=Object.keys(n),g=[],O=Object.create(null);if(r.isNegated()){c=Object.keys(this.fieldVectors);for(var u=0;u<c.length;u++){var P=c[u],S=t.FieldRef.fromString(P);n[P]=new t.MatchData}}for(var u=0;u<c.length;u++){var S=t.FieldRef.fromString(c[u]),d=S.docRef;if(!!z.contains(d)&&!F.contains(d)){var x=this.fieldVectors[S],R=i[S.fieldName].similarity(x),D;if((D=O[d])!==void 0)D.score+=R,D.matchData.combine(n[S]);else{var L={ref:d,score:R,matchData:n[S]};O[d]=L,g.push(L)}}}return g.sort(function(Se,ke){return ke.score-Se.score})},t.Index.prototype.toJSON=function(){var e=Object.keys(this.invertedIndex).sort().map(function(n){return[n,this.invertedIndex[n]]},this),r=Object.keys(this.fieldVectors).map(function(n){return[n,this.fieldVectors[n].toJSON()]},this);return{version:t.version,fields:this.fields,fieldVectors:r,invertedIndex:e,pipeline:this.pipeline.toJSON()}},t.Index.load=function(e){var r={},n={},i=e.fieldVectors,s=Object.create(null),o=e.invertedIndex,a=new t.TokenSet.Builder,u=t.Pipeline.load(e.pipeline);e.version!=t.version&&t.utils.warn("Version mismatch when loading serialised index. Current version of lunr '"+t.version+"' does not match serialized index '"+e.version+"'");for(var l=0;l<i.length;l++){var h=i[l],p=h[0],v=h[1];n[p]=new t.Vector(v)}for(var l=0;l<o.length;l++){var h=o[l],b=h[0],y=h[1];a.insert(b),s[b]=y}return a.finish(),r.fields=e.fields,r.fieldVectors=n,r.invertedIndex=s,r.tokenSet=a.root,r.pipeline=u,new t.Index(r)};t.Builder=function(){this._ref="id",this._fields=Object.create(null),this._documents=Object.create(null),this.invertedIndex=Object.create(null),this.fieldTermFrequencies={},this.fieldLengths={},this.tokenizer=t.tokenizer,this.pipeline=new t.Pipeline,this.searchPipeline=new t.Pipeline,this.documentCount=0,this._b=.75,this._k1=1.2,this.termIndex=0,this.metadataWhitelist=[]},t.Builder.prototype.ref=function(e){this._ref=e},t.Builder.prototype.field=function(e,r){if(/\//.test(e))throw new RangeError("Field '"+e+"' contains illegal character '/'");this._fields[e]=r||{}},t.Builder.prototype.b=function(e){e<0?this._b=0:e>1?this._b=1:this._b=e},t.Builder.prototype.k1=function(e){this._k1=e},t.Builder.prototype.add=function(e,r){var n=e[this._ref],i=Object.keys(this._fields);this._documents[n]=r||{},this.documentCount+=1;for(var s=0;s<i.length;s++){var o=i[s],a=this._fields[o].extractor,u=a?a(e):e[o],l=this.tokenizer(u,{fields:[o]}),h=this.pipeline.run(l),p=new t.FieldRef(n,o),v=Object.create(null);this.fieldTermFrequencies[p]=v,this.fieldLengths[p]=0,this.fieldLengths[p]+=h.length;for(var b=0;b<h.length;b++){var y=h[b];if(v[y]==null&&(v[y]=0),v[y]+=1,this.invertedIndex[y]==null){var E=Object.create(null);E._index=this.termIndex,this.termIndex+=1;for(var f=0;f<i.length;f++)E[i[f]]=Object.create(null);this.invertedIndex[y]=E}this.invertedIndex[y][o][n]==null&&(this.invertedIndex[y][o][n]=Object.create(null));for(var m=0;m<this.metadataWhitelist.length;m++){var T=this.metadataWhitelist[m],w=y.metadata[T];this.invertedIndex[y][o][n][T]==null&&(this.invertedIndex[y][o][n][T]=[]),this.invertedIndex[y][o][n][T].push(w)}}}},t.Builder.prototype.calculateAverageFieldLengths=function(){for(var e=Object.keys(this.fieldLengths),r=e.length,n={},i={},s=0;s<r;s++){var o=t.FieldRef.fromString(e[s]),a=o.fieldName;i[a]||(i[a]=0),i[a]+=1,n[a]||(n[a]=0),n[a]+=this.fieldLengths[o]}for(var u=Object.keys(this._fields),s=0;s<u.length;s++){var l=u[s];n[l]=n[l]/i[l]}this.averageFieldLength=n},t.Builder.prototype.createFieldVectors=function(){for(var e={},r=Object.keys(this.fieldTermFrequencies),n=r.length,i=Object.create(null),s=0;s<n;s++){for(var o=t.FieldRef.fromString(r[s]),a=o.fieldName,u=this.fieldLengths[o],l=new t.Vector,h=this.fieldTermFrequencies[o],p=Object.keys(h),v=p.length,b=this._fields[a].boost||1,y=this._documents[o.docRef].boost||1,E=0;E<v;E++){var f=p[E],m=h[f],T=this.invertedIndex[f]._index,w,k,M;i[f]===void 0?(w=t.idf(this.invertedIndex[f],this.documentCount),i[f]=w):w=i[f],k=w*((this._k1+1)*m)/(this._k1*(1-this._b+this._b*(u/this.averageFieldLength[a]))+m),k*=b,k*=y,M=Math.round(k*1e3)/1e3,l.insert(T,M)}e[o]=l}this.fieldVectors=e},t.Builder.prototype.createTokenSet=function(){this.tokenSet=t.TokenSet.fromArray(Object.keys(this.invertedIndex).sort())},t.Builder.prototype.build=function(){return this.calculateAverageFieldLengths(),this.createFieldVectors(),this.createTokenSet(),new t.Index({invertedIndex:this.invertedIndex,fieldVectors:this.fieldVectors,tokenSet:this.tokenSet,fields:Object.keys(this._fields),pipeline:this.searchPipeline})},t.Builder.prototype.use=function(e){var r=Array.prototype.slice.call(arguments,1);r.unshift(this),e.apply(this,r)},t.MatchData=function(e,r,n){for(var i=Object.create(null),s=Object.keys(n||{}),o=0;o<s.length;o++){var a=s[o];i[a]=n[a].slice()}this.metadata=Object.create(null),e!==void 0&&(this.metadata[e]=Object.create(null),this.metadata[e][r]=i)},t.MatchData.prototype.combine=function(e){for(var r=Object.keys(e.metadata),n=0;n<r.length;n++){var i=r[n],s=Object.keys(e.metadata[i]);this.metadata[i]==null&&(this.metadata[i]=Object.create(null));for(var o=0;o<s.length;o++){var a=s[o],u=Object.keys(e.metadata[i][a]);this.metadata[i][a]==null&&(this.metadata[i][a]=Object.create(null));for(var l=0;l<u.length;l++){var h=u[l];this.metadata[i][a][h]==null?this.metadata[i][a][h]=e.metadata[i][a][h]:this.metadata[i][a][h]=this.metadata[i][a][h].concat(e.metadata[i][a][h])}}}},t.MatchData.prototype.add=function(e,r,n){if(!(e in this.metadata)){this.metadata[e]=Object.create(null),this.metadata[e][r]=n;return}if(!(r in this.metadata[e])){this.metadata[e][r]=n;return}for(var i=Object.keys(n),s=0;s<i.length;s++){var o=i[s];o in this.metadata[e][r]?this.metadata[e][r][o]=this.metadata[e][r][o].concat(n[o]):this.metadata[e][r][o]=n[o]}},t.Query=function(e){this.clauses=[],this.allFields=e},t.Query.wildcard=new String("*"),t.Query.wildcard.NONE=0,t.Query.wildcard.LEADING=1,t.Query.wildcard.TRAILING=2,t.Query.presence={OPTIONAL:1,REQUIRED:2,PROHIBITED:3},t.Query.prototype.clause=function(e){return"fields"in e||(e.fields=this.allFields),"boost"in e||(e.boost=1),"usePipeline"in e||(e.usePipeline=!0),"wildcard"in e||(e.wildcard=t.Query.wildcard.NONE),e.wildcard&t.Query.wildcard.LEADING&&e.term.charAt(0)!=t.Query.wildcard&&(e.term="*"+e.term),e.wildcard&t.Query.wildcard.TRAILING&&e.term.slice(-1)!=t.Query.wildcard&&(e.term=""+e.term+"*"),"presence"in e||(e.presence=t.Query.presence.OPTIONAL),this.clauses.push(e),this},t.Query.prototype.isNegated=function(){for(var e=0;e<this.clauses.length;e++)if(this.clauses[e].presence!=t.Query.presence.PROHIBITED)return!1;return!0},t.Query.prototype.term=function(e,r){if(Array.isArray(e))return e.forEach(function(i){this.term(i,t.utils.clone(r))},this),this;var n=r||{};return n.term=e.toString(),this.clause(n),this},t.QueryParseError=function(e,r,n){this.name="QueryParseError",this.message=e,this.start=r,this.end=n},t.QueryParseError.prototype=new Error,t.QueryLexer=function(e){this.lexemes=[],this.str=e,this.length=e.length,this.pos=0,this.start=0,this.escapeCharPositions=[]},t.QueryLexer.prototype.run=function(){for(var e=t.QueryLexer.lexText;e;)e=e(this)},t.QueryLexer.prototype.sliceString=function(){for(var e=[],r=this.start,n=this.pos,i=0;i<this.escapeCharPositions.length;i++)n=this.escapeCharPositions[i],e.push(this.str.slice(r,n)),r=n+1;return e.push(this.str.slice(r,this.pos)),this.escapeCharPositions.length=0,e.join("")},t.QueryLexer.prototype.emit=function(e){this.lexemes.push({type:e,str:this.sliceString(),start:this.start,end:this.pos}),this.start=this.pos},t.QueryLexer.prototype.escapeCharacter=function(){this.escapeCharPositions.push(this.pos-1),this.pos+=1},t.QueryLexer.prototype.next=function(){if(this.pos>=this.length)return t.QueryLexer.EOS;var e=this.str.charAt(this.pos);return this.pos+=1,e},t.QueryLexer.prototype.width=function(){return this.pos-this.start},t.QueryLexer.prototype.ignore=function(){this.start==this.pos&&(this.pos+=1),this.start=this.pos},t.QueryLexer.prototype.backup=function(){this.pos-=1},t.QueryLexer.prototype.acceptDigitRun=function(){var e,r;do e=this.next(),r=e.charCodeAt(0);while(r>47&&r<58);e!=t.QueryLexer.EOS&&this.backup()},t.QueryLexer.prototype.more=function(){return this.pos<this.length},t.QueryLexer.EOS="EOS",t.QueryLexer.FIELD="FIELD",t.QueryLexer.TERM="TERM",t.QueryLexer.EDIT_DISTANCE="EDIT_DISTANCE",t.QueryLexer.BOOST="BOOST",t.QueryLexer.PRESENCE="PRESENCE",t.QueryLexer.lexField=function(e){return e.backup(),e.emit(t.QueryLexer.FIELD),e.ignore(),t.QueryLexer.lexText},t.QueryLexer.lexTerm=function(e){if(e.width()>1&&(e.backup(),e.emit(t.QueryLexer.TERM)),e.ignore(),e.more())return t.QueryLexer.lexText},t.QueryLexer.lexEditDistance=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(t.QueryLexer.EDIT_DISTANCE),t.QueryLexer.lexText},t.QueryLexer.lexBoost=function(e){return e.ignore(),e.acceptDigitRun(),e.emit(t.QueryLexer.BOOST),t.QueryLexer.lexText},t.QueryLexer.lexEOS=function(e){e.width()>0&&e.emit(t.QueryLexer.TERM)},t.QueryLexer.termSeparator=t.tokenizer.separator,t.QueryLexer.lexText=function(e){for(;;){var r=e.next();if(r==t.QueryLexer.EOS)return t.QueryLexer.lexEOS;if(r.charCodeAt(0)==92){e.escapeCharacter();continue}if(r==":")return t.QueryLexer.lexField;if(r=="~")return e.backup(),e.width()>0&&e.emit(t.QueryLexer.TERM),t.QueryLexer.lexEditDistance;if(r=="^")return e.backup(),e.width()>0&&e.emit(t.QueryLexer.TERM),t.QueryLexer.lexBoost;if(r=="+"&&e.width()===1||r=="-"&&e.width()===1)return e.emit(t.QueryLexer.PRESENCE),t.QueryLexer.lexText;if(r.match(t.QueryLexer.termSeparator))return t.QueryLexer.lexTerm}},t.QueryParser=function(e,r){this.lexer=new t.QueryLexer(e),this.query=r,this.currentClause={},this.lexemeIdx=0},t.QueryParser.prototype.parse=function(){this.lexer.run(),this.lexemes=this.lexer.lexemes;for(var e=t.QueryParser.parseClause;e;)e=e(this);return this.query},t.QueryParser.prototype.peekLexeme=function(){return this.lexemes[this.lexemeIdx]},t.QueryParser.prototype.consumeLexeme=function(){var e=this.peekLexeme();return this.lexemeIdx+=1,e},t.QueryParser.prototype.nextClause=function(){var e=this.currentClause;this.query.clause(e),this.currentClause={}},t.QueryParser.parseClause=function(e){var 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+/*!
+ * lunr.Builder
+ * Copyright (C) 2020 Oliver Nightingale
+ */
+/*!
+ * lunr.Index
+ * Copyright (C) 2020 Oliver Nightingale
+ */
+/*!
+ * lunr.Pipeline
+ * Copyright (C) 2020 Oliver Nightingale
+ */
+/*!
+ * lunr.Set
+ * Copyright (C) 2020 Oliver Nightingale
+ */
+/*!
+ * lunr.TokenSet
+ * Copyright (C) 2020 Oliver Nightingale
+ */
+/*!
+ * lunr.Vector
+ * Copyright (C) 2020 Oliver Nightingale
+ */
+/*!
+ * lunr.stemmer
+ * Copyright (C) 2020 Oliver Nightingale
+ * Includes code from - http://tartarus.org/~martin/PorterStemmer/js.txt
+ */
+/*!
+ * lunr.stopWordFilter
+ * Copyright (C) 2020 Oliver Nightingale
+ */
+/*!
+ * lunr.tokenizer
+ * Copyright (C) 2020 Oliver Nightingale
+ */
+/*!
+ * lunr.trimmer
+ * Copyright (C) 2020 Oliver Nightingale
+ */
+/*!
+ * lunr.utils
+ * Copyright (C) 2020 Oliver Nightingale
+ */
+/**
+ * lunr - http://lunrjs.com - A bit like Solr, but much smaller and not as bright - 2.3.9
+ * Copyright (C) 2020 Oliver Nightingale
+ * @license MIT
+ */
diff --git a/docs/assets/search.js b/docs/assets/search.js
new file mode 100644
index 0000000..f3cb484
--- /dev/null
+++ b/docs/assets/search.js
@@ -0,0 +1 @@
+window.searchData = JSON.parse("{\"kinds\":{\"128\":\"Class\",\"512\":\"Constructor\",\"1024\":\"Property\",\"65536\":\"Type literal\",\"262144\":\"Accessor\",\"4194304\":\"Type alias\"},\"rows\":[{\"id\":0,\"kind\":128,\"name\":\"AbstractError\",\"url\":\"classes/AbstractError.html\",\"classes\":\"tsd-kind-class tsd-has-type-parameter\"},{\"id\":1,\"kind\":1024,\"name\":\"description\",\"url\":\"classes/AbstractError.html#description\",\"classes\":\"tsd-kind-property tsd-parent-kind-class tsd-is-static\",\"parent\":\"AbstractError\"},{\"id\":2,\"kind\":65536,\"name\":\"__type\",\"url\":\"classes/AbstractError.html#__type\",\"classes\":\"tsd-kind-type-literal tsd-parent-kind-class\",\"parent\":\"AbstractError\"},{\"id\":3,\"kind\":512,\"name\":\"constructor\",\"url\":\"classes/AbstractError.html#constructor\",\"classes\":\"tsd-kind-constructor tsd-parent-kind-class tsd-has-type-parameter tsd-is-overwrite\",\"parent\":\"AbstractError\"},{\"id\":4,\"kind\":1024,\"name\":\"data\",\"url\":\"classes/AbstractError.html#data\",\"classes\":\"tsd-kind-property tsd-parent-kind-class\",\"parent\":\"AbstractError\"},{\"id\":5,\"kind\":1024,\"name\":\"cause\",\"url\":\"classes/AbstractError.html#cause\",\"classes\":\"tsd-kind-property tsd-parent-kind-class\",\"parent\":\"AbstractError\"},{\"id\":6,\"kind\":1024,\"name\":\"timestamp\",\"url\":\"classes/AbstractError.html#timestamp\",\"classes\":\"tsd-kind-property tsd-parent-kind-class\",\"parent\":\"AbstractError\"},{\"id\":7,\"kind\":262144,\"name\":\"description\",\"url\":\"classes/AbstractError.html#description-1\",\"classes\":\"tsd-kind-get-signature tsd-parent-kind-class\",\"parent\":\"AbstractError\"},{\"id\":8,\"kind\":4194304,\"name\":\"POJO\",\"url\":\"modules.html#POJO\",\"classes\":\"tsd-kind-type-alias\"},{\"id\":9,\"kind\":65536,\"name\":\"__type\",\"url\":\"modules.html#POJO.__type\",\"classes\":\"tsd-kind-type-literal tsd-parent-kind-type-alias\",\"parent\":\"POJO\"}],\"index\":{\"version\":\"2.3.9\",\"fields\":[\"name\",\"parent\"],\"fieldVectors\":[[\"name/0\",[0,2.578]],[\"parent/0\",[]],[\"name/1\",[1,14.816]],[\"parent/1\",[0,0.234]],[\"name/2\",[2,14.816]],[\"parent/2\",[0,0.234]],[\"name/3\",[3,19.924]],[\"parent/3\",[0,0.234]],[\"name/4\",[4,19.924]],[\"parent/4\",[0,0.234]],[\"name/5\",[5,19.924]],[\"parent/5\",[0,0.234]],[\"name/6\",[6,19.924]],[\"parent/6\",[0,0.234]],[\"name/7\",[1,14.816]],[\"parent/7\",[0,0.234]],[\"name/8\",[7,14.816]],[\"parent/8\",[]],[\"name/9\",[2,14.816]],[\"parent/9\",[7,1.344]]],\"invertedIndex\":[[\"__type\",{\"_index\":2,\"name\":{\"2\":{},\"9\":{}},\"parent\":{}}],[\"abstracterror\",{\"_index\":0,\"name\":{\"0\":{}},\"parent\":{\"1\":{},\"2\":{},\"3\":{},\"4\":{},\"5\":{},\"6\":{},\"7\":{}}}],[\"cause\",{\"_index\":5,\"name\":{\"5\":{}},\"parent\":{}}],[\"constructor\",{\"_index\":3,\"name\":{\"3\":{}},\"parent\":{}}],[\"data\",{\"_index\":4,\"name\":{\"4\":{}},\"parent\":{}}],[\"description\",{\"_index\":1,\"name\":{\"1\":{},\"7\":{}},\"parent\":{}}],[\"pojo\",{\"_index\":7,\"name\":{\"8\":{}},\"parent\":{\"9\":{}}}],[\"timestamp\",{\"_index\":6,\"name\":{\"6\":{}},\"parent\":{}}]],\"pipeline\":[]}}");
\ No newline at end of file
diff --git a/docs/assets/style.css b/docs/assets/style.css
new file mode 100644
index 0000000..a16ed02
--- /dev/null
+++ b/docs/assets/style.css
@@ -0,0 +1,1413 @@
+@import url("./icons.css");
+
+:root {
+    /* Light */
+    --light-color-background: #fcfcfc;
+    --light-color-secondary-background: #fff;
+    --light-color-text: #222;
+    --light-color-text-aside: #707070;
+    --light-color-link: #4da6ff;
+    --light-color-menu-divider: #eee;
+    --light-color-menu-divider-focus: #000;
+    --light-color-menu-label: #707070;
+    --light-color-panel: var(--light-color-secondary-background);
+    --light-color-panel-divider: #eee;
+    --light-color-comment-tag: #707070;
+    --light-color-comment-tag-text: #fff;
+    --light-color-ts: #9600ff;
+    --light-color-ts-interface: #647f1b;
+    --light-color-ts-enum: #937210;
+    --light-color-ts-class: #0672de;
+    --light-color-ts-private: #707070;
+    --light-color-toolbar: #fff;
+    --light-color-toolbar-text: #333;
+    --light-icon-filter: invert(0);
+    --light-external-icon: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100' width='10' height='10'><path fill-opacity='0' stroke='%23000' stroke-width='10' d='m43,35H5v60h60V57M45,5v10l10,10-30,30 20,20 30-30 10,10h10V5z'/></svg>");
+
+    /* Dark */
+    --dark-color-background: #36393f;
+    --dark-color-secondary-background: #2f3136;
+    --dark-color-text: #ffffff;
+    --dark-color-text-aside: #e6e4e4;
+    --dark-color-link: #00aff4;
+    --dark-color-menu-divider: #eee;
+    --dark-color-menu-divider-focus: #000;
+    --dark-color-menu-label: #707070;
+    --dark-color-panel: var(--dark-color-secondary-background);
+    --dark-color-panel-divider: #818181;
+    --dark-color-comment-tag: #dcddde;
+    --dark-color-comment-tag-text: #2f3136;
+    --dark-color-ts: #c97dff;
+    --dark-color-ts-interface: #9cbe3c;
+    --dark-color-ts-enum: #d6ab29;
+    --dark-color-ts-class: #3695f3;
+    --dark-color-ts-private: #e2e2e2;
+    --dark-color-toolbar: #34373c;
+    --dark-color-toolbar-text: #ffffff;
+    --dark-icon-filter: invert(1);
+    --dark-external-icon: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100' width='10' height='10'><path fill-opacity='0' stroke='%23fff' stroke-width='10' d='m43,35H5v60h60V57M45,5v10l10,10-30,30 20,20 30-30 10,10h10V5z'/></svg>");
+}
+
+@media (prefers-color-scheme: light) {
+    :root {
+        --color-background: var(--light-color-background);
+        --color-secondary-background: var(--light-color-secondary-background);
+        --color-text: var(--light-color-text);
+        --color-text-aside: var(--light-color-text-aside);
+        --color-link: var(--light-color-link);
+        --color-menu-divider: var(--light-color-menu-divider);
+        --color-menu-divider-focus: var(--light-color-menu-divider-focus);
+        --color-menu-label: var(--light-color-menu-label);
+        --color-panel: var(--light-color-panel);
+        --color-panel-divider: var(--light-color-panel-divider);
+        --color-comment-tag: var(--light-color-comment-tag);
+        --color-comment-tag-text: var(--light-color-comment-tag-text);
+        --color-ts: var(--light-color-ts);
+        --color-ts-interface: var(--light-color-ts-interface);
+        --color-ts-enum: var(--light-color-ts-enum);
+        --color-ts-class: var(--light-color-ts-class);
+        --color-ts-private: var(--light-color-ts-private);
+        --color-toolbar: var(--light-color-toolbar);
+        --color-toolbar-text: var(--light-color-toolbar-text);
+        --icon-filter: var(--light-icon-filter);
+        --external-icon: var(--light-external-icon);
+    }
+}
+
+@media (prefers-color-scheme: dark) {
+    :root {
+        --color-background: var(--dark-color-background);
+        --color-secondary-background: var(--dark-color-secondary-background);
+        --color-text: var(--dark-color-text);
+        --color-text-aside: var(--dark-color-text-aside);
+        --color-link: var(--dark-color-link);
+        --color-menu-divider: var(--dark-color-menu-divider);
+        --color-menu-divider-focus: var(--dark-color-menu-divider-focus);
+        --color-menu-label: var(--dark-color-menu-label);
+        --color-panel: var(--dark-color-panel);
+        --color-panel-divider: var(--dark-color-panel-divider);
+        --color-comment-tag: var(--dark-color-comment-tag);
+        --color-comment-tag-text: var(--dark-color-comment-tag-text);
+        --color-ts: var(--dark-color-ts);
+        --color-ts-interface: var(--dark-color-ts-interface);
+        --color-ts-enum: var(--dark-color-ts-enum);
+        --color-ts-class: var(--dark-color-ts-class);
+        --color-ts-private: var(--dark-color-ts-private);
+        --color-toolbar: var(--dark-color-toolbar);
+        --color-toolbar-text: var(--dark-color-toolbar-text);
+        --icon-filter: var(--dark-icon-filter);
+        --external-icon: var(--dark-external-icon);
+    }
+}
+
+body {
+    margin: 0;
+}
+
+body.light {
+    --color-background: var(--light-color-background);
+    --color-secondary-background: var(--light-color-secondary-background);
+    --color-text: var(--light-color-text);
+    --color-text-aside: var(--light-color-text-aside);
+    --color-link: var(--light-color-link);
+    --color-menu-divider: var(--light-color-menu-divider);
+    --color-menu-divider-focus: var(--light-color-menu-divider-focus);
+    --color-menu-label: var(--light-color-menu-label);
+    --color-panel: var(--light-color-panel);
+    --color-panel-divider: var(--light-color-panel-divider);
+    --color-comment-tag: var(--light-color-comment-tag);
+    --color-comment-tag-text: var(--light-color-comment-tag-text);
+    --color-ts: var(--light-color-ts);
+    --color-ts-interface: var(--light-color-ts-interface);
+    --color-ts-enum: var(--light-color-ts-enum);
+    --color-ts-class: var(--light-color-ts-class);
+    --color-ts-private: var(--light-color-ts-private);
+    --color-toolbar: var(--light-color-toolbar);
+    --color-toolbar-text: var(--light-color-toolbar-text);
+    --icon-filter: var(--light-icon-filter);
+    --external-icon: var(--light-external-icon);
+}
+
+body.dark {
+    --color-background: var(--dark-color-background);
+    --color-secondary-background: var(--dark-color-secondary-background);
+    --color-text: var(--dark-color-text);
+    --color-text-aside: var(--dark-color-text-aside);
+    --color-link: var(--dark-color-link);
+    --color-menu-divider: var(--dark-color-menu-divider);
+    --color-menu-divider-focus: var(--dark-color-menu-divider-focus);
+    --color-menu-label: var(--dark-color-menu-label);
+    --color-panel: var(--dark-color-panel);
+    --color-panel-divider: var(--dark-color-panel-divider);
+    --color-comment-tag: var(--dark-color-comment-tag);
+    --color-comment-tag-text: var(--dark-color-comment-tag-text);
+    --color-ts: var(--dark-color-ts);
+    --color-ts-interface: var(--dark-color-ts-interface);
+    --color-ts-enum: var(--dark-color-ts-enum);
+    --color-ts-class: var(--dark-color-ts-class);
+    --color-ts-private: var(--dark-color-ts-private);
+    --color-toolbar: var(--dark-color-toolbar);
+    --color-toolbar-text: var(--dark-color-toolbar-text);
+    --icon-filter: var(--dark-icon-filter);
+    --external-icon: var(--dark-external-icon);
+}
+
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+    line-height: 1.2;
+}
+
+h1 {
+    font-size: 2em;
+    margin: 0.67em 0;
+}
+
+h2 {
+    font-size: 1.5em;
+    margin: 0.83em 0;
+}
+
+h3 {
+    font-size: 1.17em;
+    margin: 1em 0;
+}
+
+h4,
+.tsd-index-panel h3 {
+    font-size: 1em;
+    margin: 1.33em 0;
+}
+
+h5 {
+    font-size: 0.83em;
+    margin: 1.67em 0;
+}
+
+h6 {
+    font-size: 0.67em;
+    margin: 2.33em 0;
+}
+
+pre {
+    white-space: pre;
+    white-space: pre-wrap;
+    word-wrap: break-word;
+}
+
+dl,
+menu,
+ol,
+ul {
+    margin: 1em 0;
+}
+
+dd {
+    margin: 0 0 0 40px;
+}
+
+.container {
+    max-width: 1200px;
+    margin: 0 auto;
+    padding: 0 40px;
+}
+@media (max-width: 640px) {
+    .container {
+        padding: 0 20px;
+    }
+}
+
+.container-main {
+    padding-bottom: 200px;
+}
+
+.row {
+    display: flex;
+    position: relative;
+    margin: 0 -10px;
+}
+.row:after {
+    visibility: hidden;
+    display: block;
+    content: "";
+    clear: both;
+    height: 0;
+}
+
+.col-4,
+.col-8 {
+    box-sizing: border-box;
+    float: left;
+    padding: 0 10px;
+}
+
+.col-4 {
+    width: 33.3333333333%;
+}
+.col-8 {
+    width: 66.6666666667%;
+}
+
+ul.tsd-descriptions > li > :first-child,
+.tsd-panel > :first-child,
+.col-8 > :first-child,
+.col-4 > :first-child,
+ul.tsd-descriptions > li > :first-child > :first-child,
+.tsd-panel > :first-child > :first-child,
+.col-8 > :first-child > :first-child,
+.col-4 > :first-child > :first-child,
+ul.tsd-descriptions > li > :first-child > :first-child > :first-child,
+.tsd-panel > :first-child > :first-child > :first-child,
+.col-8 > :first-child > :first-child > :first-child,
+.col-4 > :first-child > :first-child > :first-child {
+    margin-top: 0;
+}
+ul.tsd-descriptions > li > :last-child,
+.tsd-panel > :last-child,
+.col-8 > :last-child,
+.col-4 > :last-child,
+ul.tsd-descriptions > li > :last-child > :last-child,
+.tsd-panel > :last-child > :last-child,
+.col-8 > :last-child > :last-child,
+.col-4 > :last-child > :last-child,
+ul.tsd-descriptions > li > :last-child > :last-child > :last-child,
+.tsd-panel > :last-child > :last-child > :last-child,
+.col-8 > :last-child > :last-child > :last-child,
+.col-4 > :last-child > :last-child > :last-child {
+    margin-bottom: 0;
+}
+
+@keyframes fade-in {
+    from {
+        opacity: 0;
+    }
+    to {
+        opacity: 1;
+    }
+}
+@keyframes fade-out {
+    from {
+        opacity: 1;
+        visibility: visible;
+    }
+    to {
+        opacity: 0;
+    }
+}
+@keyframes fade-in-delayed {
+    0% {
+        opacity: 0;
+    }
+    33% {
+        opacity: 0;
+    }
+    100% {
+        opacity: 1;
+    }
+}
+@keyframes fade-out-delayed {
+    0% {
+        opacity: 1;
+        visibility: visible;
+    }
+    66% {
+        opacity: 0;
+    }
+    100% {
+        opacity: 0;
+    }
+}
+@keyframes shift-to-left {
+    from {
+        transform: translate(0, 0);
+    }
+    to {
+        transform: translate(-25%, 0);
+    }
+}
+@keyframes unshift-to-left {
+    from {
+        transform: translate(-25%, 0);
+    }
+    to {
+        transform: translate(0, 0);
+    }
+}
+@keyframes pop-in-from-right {
+    from {
+        transform: translate(100%, 0);
+    }
+    to {
+        transform: translate(0, 0);
+    }
+}
+@keyframes pop-out-to-right {
+    from {
+        transform: translate(0, 0);
+        visibility: visible;
+    }
+    to {
+        transform: translate(100%, 0);
+    }
+}
+body {
+    background: var(--color-background);
+    font-family: "Segoe UI", sans-serif;
+    font-size: 16px;
+    color: var(--color-text);
+}
+
+a {
+    color: var(--color-link);
+    text-decoration: none;
+}
+a:hover {
+    text-decoration: underline;
+}
+a.external[target="_blank"] {
+    background-image: var(--external-icon);
+    background-position: top 3px right;
+    background-repeat: no-repeat;
+    padding-right: 13px;
+}
+
+code,
+pre {
+    font-family: Menlo, Monaco, Consolas, "Courier New", monospace;
+    padding: 0.2em;
+    margin: 0;
+    font-size: 14px;
+}
+
+pre {
+    padding: 10px;
+}
+pre code {
+    padding: 0;
+    font-size: 100%;
+}
+
+blockquote {
+    margin: 1em 0;
+    padding-left: 1em;
+    border-left: 4px solid gray;
+}
+
+.tsd-typography {
+    line-height: 1.333em;
+}
+.tsd-typography ul {
+    list-style: square;
+    padding: 0 0 0 20px;
+    margin: 0;
+}
+.tsd-typography h4,
+.tsd-typography .tsd-index-panel h3,
+.tsd-index-panel .tsd-typography h3,
+.tsd-typography h5,
+.tsd-typography h6 {
+    font-size: 1em;
+    margin: 0;
+}
+.tsd-typography h5,
+.tsd-typography h6 {
+    font-weight: normal;
+}
+.tsd-typography p,
+.tsd-typography ul,
+.tsd-typography ol {
+    margin: 1em 0;
+}
+
+@media (min-width: 901px) and (max-width: 1024px) {
+    html .col-content {
+        width: 72%;
+    }
+    html .col-menu {
+        width: 28%;
+    }
+    html .tsd-navigation {
+        padding-left: 10px;
+    }
+}
+@media (max-width: 900px) {
+    html .col-content {
+        float: none;
+        width: 100%;
+    }
+    html .col-menu {
+        position: fixed !important;
+        overflow: auto;
+        -webkit-overflow-scrolling: touch;
+        z-index: 1024;
+        top: 0 !important;
+        bottom: 0 !important;
+        left: auto !important;
+        right: 0 !important;
+        width: 100%;
+        padding: 20px 20px 0 0;
+        max-width: 450px;
+        visibility: hidden;
+        background-color: var(--color-panel);
+        transform: translate(100%, 0);
+    }
+    html .col-menu > *:last-child {
+        padding-bottom: 20px;
+    }
+    html .overlay {
+        content: "";
+        display: block;
+        position: fixed;
+        z-index: 1023;
+        top: 0;
+        left: 0;
+        right: 0;
+        bottom: 0;
+        background-color: rgba(0, 0, 0, 0.75);
+        visibility: hidden;
+    }
+
+    .to-has-menu .overlay {
+        animation: fade-in 0.4s;
+    }
+
+    .to-has-menu :is(header, footer, .col-content) {
+        animation: shift-to-left 0.4s;
+    }
+
+    .to-has-menu .col-menu {
+        animation: pop-in-from-right 0.4s;
+    }
+
+    .from-has-menu .overlay {
+        animation: fade-out 0.4s;
+    }
+
+    .from-has-menu :is(header, footer, .col-content) {
+        animation: unshift-to-left 0.4s;
+    }
+
+    .from-has-menu .col-menu {
+        animation: pop-out-to-right 0.4s;
+    }
+
+    .has-menu body {
+        overflow: hidden;
+    }
+    .has-menu .overlay {
+        visibility: visible;
+    }
+    .has-menu :is(header, footer, .col-content) {
+        transform: translate(-25%, 0);
+    }
+    .has-menu .col-menu {
+        visibility: visible;
+        transform: translate(0, 0);
+        display: grid;
+        grid-template-rows: auto 1fr;
+        max-height: 100vh;
+    }
+    .has-menu .tsd-navigation {
+        max-height: 100%;
+    }
+}
+
+.tsd-page-title {
+    padding: 70px 0 20px 0;
+    margin: 0 0 40px 0;
+    background: var(--color-panel);
+    box-shadow: 0 0 5px rgba(0, 0, 0, 0.35);
+}
+.tsd-page-title h1 {
+    margin: 0;
+}
+
+.tsd-breadcrumb {
+    margin: 0;
+    padding: 0;
+    color: var(--color-text-aside);
+}
+.tsd-breadcrumb a {
+    color: var(--color-text-aside);
+    text-decoration: none;
+}
+.tsd-breadcrumb a:hover {
+    text-decoration: underline;
+}
+.tsd-breadcrumb li {
+    display: inline;
+}
+.tsd-breadcrumb li:after {
+    content: " / ";
+}
+
+dl.tsd-comment-tags {
+    overflow: hidden;
+}
+dl.tsd-comment-tags dt {
+    float: left;
+    padding: 1px 5px;
+    margin: 0 10px 0 0;
+    border-radius: 4px;
+    border: 1px solid var(--color-comment-tag);
+    color: var(--color-comment-tag);
+    font-size: 0.8em;
+    font-weight: normal;
+}
+dl.tsd-comment-tags dd {
+    margin: 0 0 10px 0;
+}
+dl.tsd-comment-tags dd:before,
+dl.tsd-comment-tags dd:after {
+    display: table;
+    content: " ";
+}
+dl.tsd-comment-tags dd pre,
+dl.tsd-comment-tags dd:after {
+    clear: both;
+}
+dl.tsd-comment-tags p {
+    margin: 0;
+}
+
+.tsd-panel.tsd-comment .lead {
+    font-size: 1.1em;
+    line-height: 1.333em;
+    margin-bottom: 2em;
+}
+.tsd-panel.tsd-comment .lead:last-child {
+    margin-bottom: 0;
+}
+
+.toggle-protected .tsd-is-private {
+    display: none;
+}
+
+.toggle-public .tsd-is-private,
+.toggle-public .tsd-is-protected,
+.toggle-public .tsd-is-private-protected {
+    display: none;
+}
+
+.toggle-inherited .tsd-is-inherited {
+    display: none;
+}
+
+.toggle-externals .tsd-is-external {
+    display: none;
+}
+
+#tsd-filter {
+    position: relative;
+    display: inline-block;
+    height: 40px;
+    vertical-align: bottom;
+}
+.no-filter #tsd-filter {
+    display: none;
+}
+#tsd-filter .tsd-filter-group {
+    display: inline-block;
+    height: 40px;
+    vertical-align: bottom;
+    white-space: nowrap;
+}
+#tsd-filter input {
+    display: none;
+}
+@media (max-width: 900px) {
+    #tsd-filter .tsd-filter-group {
+        display: block;
+        position: absolute;
+        top: 40px;
+        right: 20px;
+        height: auto;
+        background-color: var(--color-panel);
+        visibility: hidden;
+        transform: translate(50%, 0);
+        box-shadow: 0 0 4px rgba(0, 0, 0, 0.25);
+    }
+    .has-options #tsd-filter .tsd-filter-group {
+        visibility: visible;
+    }
+    .to-has-options #tsd-filter .tsd-filter-group {
+        animation: fade-in 0.2s;
+    }
+    .from-has-options #tsd-filter .tsd-filter-group {
+        animation: fade-out 0.2s;
+    }
+    #tsd-filter label,
+    #tsd-filter .tsd-select {
+        display: block;
+        padding-right: 20px;
+    }
+}
+
+footer {
+    border-top: 1px solid var(--color-panel-divider);
+    background-color: var(--color-panel);
+}
+footer:after {
+    content: "";
+    display: table;
+}
+footer.with-border-bottom {
+    border-bottom: 1px solid var(--color-panel-divider);
+}
+footer .tsd-legend-group {
+    font-size: 0;
+}
+footer .tsd-legend {
+    display: inline-block;
+    width: 25%;
+    padding: 0;
+    font-size: 16px;
+    list-style: none;
+    line-height: 1.333em;
+    vertical-align: top;
+}
+@media (max-width: 900px) {
+    footer .tsd-legend {
+        width: 50%;
+    }
+}
+
+.tsd-hierarchy {
+    list-style: square;
+    padding: 0 0 0 20px;
+    margin: 0;
+}
+.tsd-hierarchy .target {
+    font-weight: bold;
+}
+
+.tsd-index-panel .tsd-index-content {
+    margin-bottom: -30px !important;
+}
+.tsd-index-panel .tsd-index-section {
+    margin-bottom: 30px !important;
+}
+.tsd-index-panel h3 {
+    margin: 0 -20px 10px -20px;
+    padding: 0 20px 10px 20px;
+    border-bottom: 1px solid var(--color-panel-divider);
+}
+.tsd-index-panel ul.tsd-index-list {
+    -webkit-column-count: 3;
+    -moz-column-count: 3;
+    -ms-column-count: 3;
+    -o-column-count: 3;
+    column-count: 3;
+    -webkit-column-gap: 20px;
+    -moz-column-gap: 20px;
+    -ms-column-gap: 20px;
+    -o-column-gap: 20px;
+    column-gap: 20px;
+    padding: 0;
+    list-style: none;
+    line-height: 1.333em;
+}
+@media (max-width: 900px) {
+    .tsd-index-panel ul.tsd-index-list {
+        -webkit-column-count: 1;
+        -moz-column-count: 1;
+        -ms-column-count: 1;
+        -o-column-count: 1;
+        column-count: 1;
+    }
+}
+@media (min-width: 901px) and (max-width: 1024px) {
+    .tsd-index-panel ul.tsd-index-list {
+        -webkit-column-count: 2;
+        -moz-column-count: 2;
+        -ms-column-count: 2;
+        -o-column-count: 2;
+        column-count: 2;
+    }
+}
+.tsd-index-panel ul.tsd-index-list li {
+    -webkit-page-break-inside: avoid;
+    -moz-page-break-inside: avoid;
+    -ms-page-break-inside: avoid;
+    -o-page-break-inside: avoid;
+    page-break-inside: avoid;
+}
+.tsd-index-panel a,
+.tsd-index-panel .tsd-parent-kind-module a {
+    color: var(--color-ts);
+}
+.tsd-index-panel .tsd-parent-kind-interface a {
+    color: var(--color-ts-interface);
+}
+.tsd-index-panel .tsd-parent-kind-enum a {
+    color: var(--color-ts-enum);
+}
+.tsd-index-panel .tsd-parent-kind-class a {
+    color: var(--color-ts-class);
+}
+.tsd-index-panel .tsd-kind-module a {
+    color: var(--color-ts);
+}
+.tsd-index-panel .tsd-kind-interface a {
+    color: var(--color-ts-interface);
+}
+.tsd-index-panel .tsd-kind-enum a {
+    color: var(--color-ts-enum);
+}
+.tsd-index-panel .tsd-kind-class a {
+    color: var(--color-ts-class);
+}
+.tsd-index-panel .tsd-is-private a {
+    color: var(--color-ts-private);
+}
+
+.tsd-flag {
+    display: inline-block;
+    padding: 1px 5px;
+    border-radius: 4px;
+    color: var(--color-comment-tag-text);
+    background-color: var(--color-comment-tag);
+    text-indent: 0;
+    font-size: 14px;
+    font-weight: normal;
+}
+
+.tsd-anchor {
+    position: absolute;
+    top: -100px;
+}
+
+.tsd-member {
+    position: relative;
+}
+.tsd-member .tsd-anchor + h3 {
+    margin-top: 0;
+    margin-bottom: 0;
+    border-bottom: none;
+}
+.tsd-member [data-tsd-kind] {
+    color: var(--color-ts);
+}
+.tsd-member [data-tsd-kind="Interface"] {
+    color: var(--color-ts-interface);
+}
+.tsd-member [data-tsd-kind="Enum"] {
+    color: var(--color-ts-enum);
+}
+.tsd-member [data-tsd-kind="Class"] {
+    color: var(--color-ts-class);
+}
+.tsd-member [data-tsd-kind="Private"] {
+    color: var(--color-ts-private);
+}
+
+.tsd-navigation {
+    margin: 0 0 0 40px;
+}
+.tsd-navigation a {
+    display: block;
+    padding-top: 2px;
+    padding-bottom: 2px;
+    border-left: 2px solid transparent;
+    color: var(--color-text);
+    text-decoration: none;
+    transition: border-left-color 0.1s;
+}
+.tsd-navigation a:hover {
+    text-decoration: underline;
+}
+.tsd-navigation ul {
+    margin: 0;
+    padding: 0;
+    list-style: none;
+}
+.tsd-navigation li {
+    padding: 0;
+}
+
+.tsd-navigation.primary {
+    padding-bottom: 40px;
+}
+.tsd-navigation.primary a {
+    display: block;
+    padding-top: 6px;
+    padding-bottom: 6px;
+}
+.tsd-navigation.primary ul li a {
+    padding-left: 5px;
+}
+.tsd-navigation.primary ul li li a {
+    padding-left: 25px;
+}
+.tsd-navigation.primary ul li li li a {
+    padding-left: 45px;
+}
+.tsd-navigation.primary ul li li li li a {
+    padding-left: 65px;
+}
+.tsd-navigation.primary ul li li li li li a {
+    padding-left: 85px;
+}
+.tsd-navigation.primary ul li li li li li li a {
+    padding-left: 105px;
+}
+.tsd-navigation.primary > ul {
+    border-bottom: 1px solid var(--color-panel-divider);
+}
+.tsd-navigation.primary li {
+    border-top: 1px solid var(--color-panel-divider);
+}
+.tsd-navigation.primary li.current > a {
+    font-weight: bold;
+}
+.tsd-navigation.primary li.label span {
+    display: block;
+    padding: 20px 0 6px 5px;
+    color: var(--color-menu-label);
+}
+.tsd-navigation.primary li.globals + li > span,
+.tsd-navigation.primary li.globals + li > a {
+    padding-top: 20px;
+}
+
+.tsd-navigation.secondary {
+    max-height: calc(100vh - 1rem - 40px);
+    overflow: auto;
+    position: sticky;
+    top: calc(0.5rem + 40px);
+    transition: 0.3s;
+}
+.tsd-navigation.secondary.tsd-navigation--toolbar-hide {
+    max-height: calc(100vh - 1rem);
+    top: 0.5rem;
+}
+.tsd-navigation.secondary ul {
+    transition: opacity 0.2s;
+}
+.tsd-navigation.secondary ul li a {
+    padding-left: 25px;
+}
+.tsd-navigation.secondary ul li li a {
+    padding-left: 45px;
+}
+.tsd-navigation.secondary ul li li li a {
+    padding-left: 65px;
+}
+.tsd-navigation.secondary ul li li li li a {
+    padding-left: 85px;
+}
+.tsd-navigation.secondary ul li li li li li a {
+    padding-left: 105px;
+}
+.tsd-navigation.secondary ul li li li li li li a {
+    padding-left: 125px;
+}
+.tsd-navigation.secondary ul.current a {
+    border-left-color: var(--color-panel-divider);
+}
+.tsd-navigation.secondary li.focus > a,
+.tsd-navigation.secondary ul.current li.focus > a {
+    border-left-color: var(--color-menu-divider-focus);
+}
+.tsd-navigation.secondary li.current {
+    margin-top: 20px;
+    margin-bottom: 20px;
+    border-left-color: var(--color-panel-divider);
+}
+.tsd-navigation.secondary li.current > a {
+    font-weight: bold;
+}
+
+@media (min-width: 901px) {
+    .menu-sticky-wrap {
+        position: static;
+    }
+}
+
+.tsd-panel {
+    margin: 20px 0;
+    padding: 20px;
+    background-color: var(--color-panel);
+    box-shadow: 0 0 4px rgba(0, 0, 0, 0.25);
+}
+.tsd-panel:empty {
+    display: none;
+}
+.tsd-panel > h1,
+.tsd-panel > h2,
+.tsd-panel > h3 {
+    margin: 1.5em -20px 10px -20px;
+    padding: 0 20px 10px 20px;
+    border-bottom: 1px solid var(--color-panel-divider);
+}
+.tsd-panel > h1.tsd-before-signature,
+.tsd-panel > h2.tsd-before-signature,
+.tsd-panel > h3.tsd-before-signature {
+    margin-bottom: 0;
+    border-bottom: 0;
+}
+.tsd-panel table {
+    display: block;
+    width: 100%;
+    overflow: auto;
+    margin-top: 10px;
+    word-break: normal;
+    word-break: keep-all;
+    border-collapse: collapse;
+}
+.tsd-panel table th {
+    font-weight: bold;
+}
+.tsd-panel table th,
+.tsd-panel table td {
+    padding: 6px 13px;
+    border: 1px solid var(--color-panel-divider);
+}
+.tsd-panel table tr {
+    background: var(--color-background);
+}
+.tsd-panel table tr:nth-child(even) {
+    background: var(--color-secondary-background);
+}
+
+.tsd-panel-group {
+    margin: 60px 0;
+}
+.tsd-panel-group > h1,
+.tsd-panel-group > h2,
+.tsd-panel-group > h3 {
+    padding-left: 20px;
+    padding-right: 20px;
+}
+
+#tsd-search {
+    transition: background-color 0.2s;
+}
+#tsd-search .title {
+    position: relative;
+    z-index: 2;
+}
+#tsd-search .field {
+    position: absolute;
+    left: 0;
+    top: 0;
+    right: 40px;
+    height: 40px;
+}
+#tsd-search .field input {
+    box-sizing: border-box;
+    position: relative;
+    top: -50px;
+    z-index: 1;
+    width: 100%;
+    padding: 0 10px;
+    opacity: 0;
+    outline: 0;
+    border: 0;
+    background: transparent;
+    color: var(--color-text);
+}
+#tsd-search .field label {
+    position: absolute;
+    overflow: hidden;
+    right: -40px;
+}
+#tsd-search .field input,
+#tsd-search .title {
+    transition: opacity 0.2s;
+}
+#tsd-search .results {
+    position: absolute;
+    visibility: hidden;
+    top: 40px;
+    width: 100%;
+    margin: 0;
+    padding: 0;
+    list-style: none;
+    box-shadow: 0 0 4px rgba(0, 0, 0, 0.25);
+}
+#tsd-search .results li {
+    padding: 0 10px;
+    background-color: var(--color-background);
+}
+#tsd-search .results li:nth-child(even) {
+    background-color: var(--color-panel);
+}
+#tsd-search .results li.state {
+    display: none;
+}
+#tsd-search .results li.current,
+#tsd-search .results li:hover {
+    background-color: var(--color-panel-divider);
+}
+#tsd-search .results a {
+    display: block;
+}
+#tsd-search .results a:before {
+    top: 10px;
+}
+#tsd-search .results span.parent {
+    color: var(--color-text-aside);
+    font-weight: normal;
+}
+#tsd-search.has-focus {
+    background-color: var(--color-panel-divider);
+}
+#tsd-search.has-focus .field input {
+    top: 0;
+    opacity: 1;
+}
+#tsd-search.has-focus .title {
+    z-index: 0;
+    opacity: 0;
+}
+#tsd-search.has-focus .results {
+    visibility: visible;
+}
+#tsd-search.loading .results li.state.loading {
+    display: block;
+}
+#tsd-search.failure .results li.state.failure {
+    display: block;
+}
+
+.tsd-signature {
+    margin: 0 0 1em 0;
+    padding: 10px;
+    border: 1px solid var(--color-panel-divider);
+    font-family: Menlo, Monaco, Consolas, "Courier New", monospace;
+    font-size: 14px;
+    overflow-x: auto;
+}
+.tsd-signature.tsd-kind-icon {
+    padding-left: 30px;
+}
+.tsd-signature.tsd-kind-icon:before {
+    top: 10px;
+    left: 10px;
+}
+.tsd-panel > .tsd-signature {
+    margin-left: -20px;
+    margin-right: -20px;
+    border-width: 1px 0;
+}
+.tsd-panel > .tsd-signature.tsd-kind-icon {
+    padding-left: 40px;
+}
+.tsd-panel > .tsd-signature.tsd-kind-icon:before {
+    left: 20px;
+}
+
+.tsd-signature-symbol {
+    color: var(--color-text-aside);
+    font-weight: normal;
+}
+
+.tsd-signature-type {
+    font-style: italic;
+    font-weight: normal;
+}
+
+.tsd-signatures {
+    padding: 0;
+    margin: 0 0 1em 0;
+    border: 1px solid var(--color-panel-divider);
+}
+.tsd-signatures .tsd-signature {
+    margin: 0;
+    border-width: 1px 0 0 0;
+    transition: background-color 0.1s;
+}
+.tsd-signatures .tsd-signature:first-child {
+    border-top-width: 0;
+}
+.tsd-signatures .tsd-signature.current {
+    background-color: var(--color-panel-divider);
+}
+.tsd-signatures.active > .tsd-signature {
+    cursor: pointer;
+}
+.tsd-panel > .tsd-signatures {
+    margin-left: -20px;
+    margin-right: -20px;
+    border-width: 1px 0;
+}
+.tsd-panel > .tsd-signatures .tsd-signature.tsd-kind-icon {
+    padding-left: 40px;
+}
+.tsd-panel > .tsd-signatures .tsd-signature.tsd-kind-icon:before {
+    left: 20px;
+}
+.tsd-panel > a.anchor + .tsd-signatures {
+    border-top-width: 0;
+    margin-top: -20px;
+}
+
+ul.tsd-descriptions {
+    position: relative;
+    overflow: hidden;
+    padding: 0;
+    list-style: none;
+}
+ul.tsd-descriptions.active > .tsd-description {
+    display: none;
+}
+ul.tsd-descriptions.active > .tsd-description.current {
+    display: block;
+}
+ul.tsd-descriptions.active > .tsd-description.fade-in {
+    animation: fade-in-delayed 0.3s;
+}
+ul.tsd-descriptions.active > .tsd-description.fade-out {
+    animation: fade-out-delayed 0.3s;
+    position: absolute;
+    display: block;
+    top: 0;
+    left: 0;
+    right: 0;
+    opacity: 0;
+    visibility: hidden;
+}
+ul.tsd-descriptions h4,
+ul.tsd-descriptions .tsd-index-panel h3,
+.tsd-index-panel ul.tsd-descriptions h3 {
+    font-size: 16px;
+    margin: 1em 0 0.5em 0;
+}
+
+ul.tsd-parameters,
+ul.tsd-type-parameters {
+    list-style: square;
+    margin: 0;
+    padding-left: 20px;
+}
+ul.tsd-parameters > li.tsd-parameter-signature,
+ul.tsd-type-parameters > li.tsd-parameter-signature {
+    list-style: none;
+    margin-left: -20px;
+}
+ul.tsd-parameters h5,
+ul.tsd-type-parameters h5 {
+    font-size: 16px;
+    margin: 1em 0 0.5em 0;
+}
+ul.tsd-parameters .tsd-comment,
+ul.tsd-type-parameters .tsd-comment {
+    margin-top: -0.5em;
+}
+
+.tsd-sources {
+    font-size: 14px;
+    color: var(--color-text-aside);
+    margin: 0 0 1em 0;
+}
+.tsd-sources a {
+    color: var(--color-text-aside);
+    text-decoration: underline;
+}
+.tsd-sources ul,
+.tsd-sources p {
+    margin: 0 !important;
+}
+.tsd-sources ul {
+    list-style: none;
+    padding: 0;
+}
+
+.tsd-page-toolbar {
+    position: fixed;
+    z-index: 1;
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 40px;
+    color: var(--color-toolbar-text);
+    background: var(--color-toolbar);
+    border-bottom: 1px solid var(--color-panel-divider);
+    transition: transform 0.3s linear;
+}
+.tsd-page-toolbar a {
+    color: var(--color-toolbar-text);
+    text-decoration: none;
+}
+.tsd-page-toolbar a.title {
+    font-weight: bold;
+}
+.tsd-page-toolbar a.title:hover {
+    text-decoration: underline;
+}
+.tsd-page-toolbar .table-wrap {
+    display: table;
+    width: 100%;
+    height: 40px;
+}
+.tsd-page-toolbar .table-cell {
+    display: table-cell;
+    position: relative;
+    white-space: nowrap;
+    line-height: 40px;
+}
+.tsd-page-toolbar .table-cell:first-child {
+    width: 100%;
+}
+
+.tsd-page-toolbar--hide {
+    transform: translateY(-100%);
+}
+
+.tsd-select .tsd-select-list li:before,
+.tsd-select .tsd-select-label:before,
+.tsd-widget:before {
+    content: "";
+    display: inline-block;
+    width: 40px;
+    height: 40px;
+    margin: 0 -8px 0 0;
+    background-image: url(./widgets.png);
+    background-repeat: no-repeat;
+    text-indent: -1024px;
+    vertical-align: bottom;
+    filter: var(--icon-filter);
+}
+@media (-webkit-min-device-pixel-ratio: 1.5), (min-resolution: 144dpi) {
+    .tsd-select .tsd-select-list li:before,
+    .tsd-select .tsd-select-label:before,
+    .tsd-widget:before {
+        background-image: url(./widgets@2x.png);
+        background-size: 320px 40px;
+    }
+}
+
+.tsd-widget {
+    display: inline-block;
+    overflow: hidden;
+    opacity: 0.8;
+    height: 40px;
+    transition: opacity 0.1s, background-color 0.2s;
+    vertical-align: bottom;
+    cursor: pointer;
+}
+.tsd-widget:hover {
+    opacity: 0.9;
+}
+.tsd-widget.active {
+    opacity: 1;
+    background-color: var(--color-panel-divider);
+}
+.tsd-widget.no-caption {
+    width: 40px;
+}
+.tsd-widget.no-caption:before {
+    margin: 0;
+}
+.tsd-widget.search:before {
+    background-position: 0 0;
+}
+.tsd-widget.menu:before {
+    background-position: -40px 0;
+}
+.tsd-widget.options:before {
+    background-position: -80px 0;
+}
+.tsd-widget.options,
+.tsd-widget.menu {
+    display: none;
+}
+@media (max-width: 900px) {
+    .tsd-widget.options,
+    .tsd-widget.menu {
+        display: inline-block;
+    }
+}
+input[type="checkbox"] + .tsd-widget:before {
+    background-position: -120px 0;
+}
+input[type="checkbox"]:checked + .tsd-widget:before {
+    background-position: -160px 0;
+}
+
+.tsd-select {
+    position: relative;
+    display: inline-block;
+    height: 40px;
+    transition: opacity 0.1s, background-color 0.2s;
+    vertical-align: bottom;
+    cursor: pointer;
+}
+.tsd-select .tsd-select-label {
+    opacity: 0.6;
+    transition: opacity 0.2s;
+}
+.tsd-select .tsd-select-label:before {
+    background-position: -240px 0;
+}
+.tsd-select.active .tsd-select-label {
+    opacity: 0.8;
+}
+.tsd-select.active .tsd-select-list {
+    visibility: visible;
+    opacity: 1;
+    transition-delay: 0s;
+}
+.tsd-select .tsd-select-list {
+    position: absolute;
+    visibility: hidden;
+    top: 40px;
+    left: 0;
+    margin: 0;
+    padding: 0;
+    opacity: 0;
+    list-style: none;
+    box-shadow: 0 0 4px rgba(0, 0, 0, 0.25);
+    transition: visibility 0s 0.2s, opacity 0.2s;
+}
+.tsd-select .tsd-select-list li {
+    padding: 0 20px 0 0;
+    background-color: var(--color-background);
+}
+.tsd-select .tsd-select-list li:before {
+    background-position: 40px 0;
+}
+.tsd-select .tsd-select-list li:nth-child(even) {
+    background-color: var(--color-panel);
+}
+.tsd-select .tsd-select-list li:hover {
+    background-color: var(--color-panel-divider);
+}
+.tsd-select .tsd-select-list li.selected:before {
+    background-position: -200px 0;
+}
+@media (max-width: 900px) {
+    .tsd-select .tsd-select-list {
+        top: 0;
+        left: auto;
+        right: 100%;
+        margin-right: -5px;
+    }
+    .tsd-select .tsd-select-label:before {
+        background-position: -280px 0;
+    }
+}
+
+img {
+    max-width: 100%;
+}
+
+.tsd-anchor-icon {
+    margin-left: 10px;
+    vertical-align: middle;
+    color: var(--color-text);
+}
+
+.tsd-anchor-icon svg {
+    width: 1em;
+    height: 1em;
+    visibility: hidden;
+}
+
+.tsd-anchor-link:hover > .tsd-anchor-icon svg {
+    visibility: visible;
+}
diff --git a/docs/assets/images/widgets.png b/docs/assets/widgets.png
similarity index 100%
rename from docs/assets/images/widgets.png
rename to docs/assets/widgets.png
diff --git a/docs/assets/images/widgets@2x.png b/docs/assets/widgets@2x.png
similarity index 100%
rename from docs/assets/images/widgets@2x.png
rename to docs/assets/widgets@2x.png
diff --git a/docs/classes/AbstractError.html b/docs/classes/AbstractError.html
new file mode 100644
index 0000000..85e3dec
--- /dev/null
+++ b/docs/classes/AbstractError.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html><html class="default"><head><meta charSet="utf-8"/><meta http-equiv="x-ua-compatible" content="IE=edge"/><title>AbstractError | @matrixai/errors</title><meta name="description" content="Documentation for @matrixai/errors"/><meta name="viewport" content="width=device-width, initial-scale=1"/><link rel="stylesheet" href="../assets/style.css"/><link rel="stylesheet" href="../assets/highlight.css"/><script async src="../assets/search.js" id="search-script"></script></head><body><script>document.body.classList.add(localStorage.getItem("tsd-theme") || "os")</script><header><div class="tsd-page-toolbar"><div class="container"><div class="table-wrap"><div class="table-cell" id="tsd-search" data-base=".."><div class="field"><label for="tsd-search-field" class="tsd-widget search no-caption">Search</label><input type="text" id="tsd-search-field"/></div><ul class="results"><li class="state loading">Preparing search index...</li><li class="state failure">The search index is not available</li></ul><a href="../index.html" class="title">@matrixai/errors</a></div><div class="table-cell" id="tsd-widgets"><div id="tsd-filter"><a href="#" class="tsd-widget options no-caption" data-toggle="options">Options</a><div class="tsd-filter-group"><div class="tsd-select" id="tsd-filter-visibility"><span class="tsd-select-label">All</span><ul class="tsd-select-list"><li data-value="public">Public</li><li data-value="protected">Public/Protected</li><li data-value="private" class="selected">All</li></ul></div> <input type="checkbox" id="tsd-filter-inherited" checked/><label class="tsd-widget" for="tsd-filter-inherited">Inherited</label><input type="checkbox" id="tsd-filter-externals" checked/><label class="tsd-widget" for="tsd-filter-externals">Externals</label></div></div><a href="#" class="tsd-widget menu no-caption" data-toggle="menu">Menu</a></div></div></div></div><div class="tsd-page-title"><div class="container"><ul class="tsd-breadcrumb"><li><a href="../modules.html">@matrixai/errors</a></li><li><a href="AbstractError.html">AbstractError</a></li></ul><h1>Class AbstractError&lt;T&gt;</h1></div></div></header><div class="container container-main"><div class="row"><div class="col-8 col-content"><section class="tsd-panel tsd-comment"><div class="tsd-comment tsd-typography"><div class="lead">
+<p>Abstract error
+Intended for further extension</p>
+</div></div></section><section class="tsd-panel tsd-type-parameters"><h3>Type parameters</h3><ul class="tsd-type-parameters"><li><h4>T = <span class="tsd-signature-type">void</span></h4></li></ul></section><section class="tsd-panel tsd-hierarchy"><h3>Hierarchy</h3><ul class="tsd-hierarchy"><li><span class="tsd-signature-type">CustomError</span><ul class="tsd-hierarchy"><li><span class="target">AbstractError</span></li></ul></li></ul></section><section class="tsd-panel-group tsd-index-group"><h2>Index</h2><section class="tsd-panel tsd-index-panel"><div class="tsd-index-content"><section class="tsd-index-section "><h3>Constructors</h3><ul class="tsd-index-list"><li class="tsd-kind-constructor tsd-parent-kind-class tsd-has-type-parameter tsd-is-overwrite"><a href="AbstractError.html#constructor" class="tsd-kind-icon">constructor</a></li></ul></section><section class="tsd-index-section "><h3>Properties</h3><ul class="tsd-index-list"><li class="tsd-kind-property tsd-parent-kind-class"><a href="AbstractError.html#cause" class="tsd-kind-icon">cause</a></li><li class="tsd-kind-property tsd-parent-kind-class"><a href="AbstractError.html#data" class="tsd-kind-icon">data</a></li><li class="tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external"><a href="AbstractError.html#message" class="tsd-kind-icon">message</a></li><li class="tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external"><a href="AbstractError.html#name" class="tsd-kind-icon">name</a></li><li class="tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external"><a href="AbstractError.html#stack" class="tsd-kind-icon">stack</a></li><li class="tsd-kind-property tsd-parent-kind-class"><a href="AbstractError.html#timestamp" class="tsd-kind-icon">timestamp</a></li><li class="tsd-kind-property tsd-parent-kind-class tsd-is-static"><a href="AbstractError.html#description" class="tsd-kind-icon">description</a></li><li class="tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-static tsd-is-external"><a href="AbstractError.html#prepareStackTrace" class="tsd-kind-icon">prepare<wbr/>Stack<wbr/>Trace</a></li><li class="tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-static tsd-is-external"><a href="AbstractError.html#stackTraceLimit" class="tsd-kind-icon">stack<wbr/>Trace<wbr/>Limit</a></li></ul></section><section class="tsd-index-section "><h3>Accessors</h3><ul class="tsd-index-list"><li class="tsd-kind-get-signature tsd-parent-kind-class"><a href="AbstractError.html#description-1" class="tsd-kind-icon">description</a></li></ul></section><section class="tsd-index-section tsd-is-inherited tsd-is-external"><h3>Methods</h3><ul class="tsd-index-list"><li class="tsd-kind-method tsd-parent-kind-class tsd-is-inherited tsd-is-static tsd-is-external"><a href="AbstractError.html#captureStackTrace" class="tsd-kind-icon">capture<wbr/>Stack<wbr/>Trace</a></li></ul></section></div></section></section><section class="tsd-panel-group tsd-member-group "><h2>Constructors</h2><section class="tsd-panel tsd-member tsd-kind-constructor tsd-parent-kind-class tsd-has-type-parameter tsd-is-overwrite"><a id="constructor" class="tsd-anchor"></a><h3 class="tsd-anchor-link">constructor<a href="#constructor" aria-label="Permalink" class="tsd-anchor-icon"><svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-link" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M10 14a3.5 3.5 0 0 0 5 0l4 -4a3.5 3.5 0 0 0 -5 -5l-.5 .5"></path><path d="M14 10a3.5 3.5 0 0 0 -5 0l-4 4a3.5 3.5 0 0 0 5 5l.5 -.5"></path></svg></a></h3><ul class="tsd-signatures tsd-kind-constructor tsd-parent-kind-class tsd-has-type-parameter tsd-is-overwrite"><li class="tsd-signature tsd-kind-icon">new <wbr/>Abstract<wbr/>Error<span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-type" data-tsd-kind="Type parameter">T</span><span class="tsd-signature-symbol">&gt;</span><span class="tsd-signature-symbol">(</span>message<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">string</span>, options<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-symbol">{ </span>cause<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type" data-tsd-kind="Type parameter">T</span><span class="tsd-signature-symbol">; </span>data<span class="tsd-signature-symbol">?: </span><a href="../modules.html#POJO" class="tsd-signature-type" data-tsd-kind="Type alias">POJO</a><span class="tsd-signature-symbol">; </span>timestamp<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">Date</span><span class="tsd-signature-symbol"> }</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><a href="AbstractError.html" class="tsd-signature-type" data-tsd-kind="Class">AbstractError</a><span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-type" data-tsd-kind="Type parameter">T</span><span class="tsd-signature-symbol">&gt;</span></li></ul><ul class="tsd-descriptions"><li class="tsd-description"><aside class="tsd-sources"><p>Overrides CustomError.constructor</p><ul><li>Defined in <a href="https://github.com/MatrixAI/js-errors/blob/master/src/AbstractError.ts#L33">src/AbstractError.ts:33</a></li></ul></aside><h4 class="tsd-type-parameters-title">Type parameters</h4><ul class="tsd-type-parameters"><li><h4>T = <span class="tsd-signature-type">void</span></h4></li></ul><h4 class="tsd-parameters-title">Parameters</h4><ul class="tsd-parameters"><li><h5>message: <span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> = &#39;&#39;</span></h5></li><li><h5>options: <span class="tsd-signature-symbol">{ </span>cause<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type" data-tsd-kind="Type parameter">T</span><span class="tsd-signature-symbol">; </span>data<span class="tsd-signature-symbol">?: </span><a href="../modules.html#POJO" class="tsd-signature-type" data-tsd-kind="Type alias">POJO</a><span class="tsd-signature-symbol">; </span>timestamp<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">Date</span><span class="tsd-signature-symbol"> }</span><span class="tsd-signature-symbol"> = {}</span></h5><ul class="tsd-parameters"><li class="tsd-parameter"><h5><span class="tsd-flag ts-flagOptional">Optional</span> cause<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type" data-tsd-kind="Type parameter">T</span></h5></li><li class="tsd-parameter"><h5><span class="tsd-flag ts-flagOptional">Optional</span> data<span class="tsd-signature-symbol">?: </span><a href="../modules.html#POJO" class="tsd-signature-type" data-tsd-kind="Type alias">POJO</a></h5></li><li class="tsd-parameter"><h5><span class="tsd-flag ts-flagOptional">Optional</span> timestamp<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">Date</span></h5></li></ul></li></ul><h4 class="tsd-returns-title">Returns <a href="AbstractError.html" class="tsd-signature-type" data-tsd-kind="Class">AbstractError</a><span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-type" data-tsd-kind="Type parameter">T</span><span class="tsd-signature-symbol">&gt;</span></h4></li></ul></section></section><section class="tsd-panel-group tsd-member-group "><h2>Properties</h2><section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class"><a id="cause" class="tsd-anchor"></a><h3 class="tsd-anchor-link">cause<a href="#cause" aria-label="Permalink" class="tsd-anchor-icon"><svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-link" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M10 14a3.5 3.5 0 0 0 5 0l4 -4a3.5 3.5 0 0 0 -5 -5l-.5 .5"></path><path d="M14 10a3.5 3.5 0 0 0 -5 0l-4 4a3.5 3.5 0 0 0 5 5l.5 -.5"></path></svg></a></h3><div class="tsd-signature tsd-kind-icon">cause<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type" data-tsd-kind="Type parameter">T</span></div><aside class="tsd-sources"><ul><li>Defined in <a href="https://github.com/MatrixAI/js-errors/blob/master/src/AbstractError.ts#L24">src/AbstractError.ts:24</a></li></ul></aside><div class="tsd-comment tsd-typography"><div class="lead">
+<p>Causation of the exception
+Can be used to know what caused this exception</p>
+</div></div></section><section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class"><a id="data" class="tsd-anchor"></a><h3 class="tsd-anchor-link">data<a href="#data" aria-label="Permalink" class="tsd-anchor-icon"><svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-link" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M10 14a3.5 3.5 0 0 0 5 0l4 -4a3.5 3.5 0 0 0 -5 -5l-.5 .5"></path><path d="M14 10a3.5 3.5 0 0 0 -5 0l-4 4a3.5 3.5 0 0 0 5 5l.5 -.5"></path></svg></a></h3><div class="tsd-signature tsd-kind-icon">data<span class="tsd-signature-symbol">:</span> <a href="../modules.html#POJO" class="tsd-signature-type" data-tsd-kind="Type alias">POJO</a></div><aside class="tsd-sources"><ul><li>Defined in <a href="https://github.com/MatrixAI/js-errors/blob/master/src/AbstractError.ts#L18">src/AbstractError.ts:18</a></li></ul></aside><div class="tsd-comment tsd-typography"><div class="lead">
+<p>Arbitrary data</p>
+</div></div></section><section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external"><a id="message" class="tsd-anchor"></a><h3 class="tsd-anchor-link">message<a href="#message" aria-label="Permalink" class="tsd-anchor-icon"><svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-link" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M10 14a3.5 3.5 0 0 0 5 0l4 -4a3.5 3.5 0 0 0 -5 -5l-.5 .5"></path><path d="M14 10a3.5 3.5 0 0 0 -5 0l-4 4a3.5 3.5 0 0 0 5 5l.5 -.5"></path></svg></a></h3><div class="tsd-signature tsd-kind-icon">message<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">string</span></div><aside class="tsd-sources"><p>Inherited from CustomError.message</p><ul><li>Defined in node_modules/typescript/lib/lib.es5.d.ts:1023</li></ul></aside></section><section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external"><a id="name" class="tsd-anchor"></a><h3 class="tsd-anchor-link">name<a href="#name" aria-label="Permalink" class="tsd-anchor-icon"><svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-link" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M10 14a3.5 3.5 0 0 0 5 0l4 -4a3.5 3.5 0 0 0 -5 -5l-.5 .5"></path><path d="M14 10a3.5 3.5 0 0 0 -5 0l-4 4a3.5 3.5 0 0 0 5 5l.5 -.5"></path></svg></a></h3><div class="tsd-signature tsd-kind-icon">name<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">string</span></div><aside class="tsd-sources"><p>Inherited from CustomError.name</p><ul><li>Defined in node_modules/ts-custom-error/dist/custom-error.d.ts:2</li></ul></aside></section><section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external"><a id="stack" class="tsd-anchor"></a><h3 class="tsd-anchor-link"><span class="tsd-flag ts-flagOptional">Optional</span> stack<a href="#stack" aria-label="Permalink" class="tsd-anchor-icon"><svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-link" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M10 14a3.5 3.5 0 0 0 5 0l4 -4a3.5 3.5 0 0 0 -5 -5l-.5 .5"></path><path d="M14 10a3.5 3.5 0 0 0 -5 0l-4 4a3.5 3.5 0 0 0 5 5l.5 -.5"></path></svg></a></h3><div class="tsd-signature tsd-kind-icon">stack<span class="tsd-signature-symbol">?:</span> <span class="tsd-signature-type">string</span></div><aside class="tsd-sources"><p>Inherited from CustomError.stack</p><ul><li>Defined in node_modules/typescript/lib/lib.es5.d.ts:1024</li></ul></aside></section><section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class"><a id="timestamp" class="tsd-anchor"></a><h3 class="tsd-anchor-link">timestamp<a href="#timestamp" aria-label="Permalink" class="tsd-anchor-icon"><svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-link" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M10 14a3.5 3.5 0 0 0 5 0l4 -4a3.5 3.5 0 0 0 -5 -5l-.5 .5"></path><path d="M14 10a3.5 3.5 0 0 0 -5 0l-4 4a3.5 3.5 0 0 0 5 5l.5 -.5"></path></svg></a></h3><div class="tsd-signature tsd-kind-icon">timestamp<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">Date</span></div><aside class="tsd-sources"><ul><li>Defined in <a href="https://github.com/MatrixAI/js-errors/blob/master/src/AbstractError.ts#L31">src/AbstractError.ts:31</a></li></ul></aside><div class="tsd-comment tsd-typography"><div class="lead">
+<p>Timestamp when exception was constructed in milliseconds
+May contain microseconds in the fractional part
+Guaranteed to be weakly monotonic</p>
+</div></div></section><section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class tsd-is-static"><a id="description" class="tsd-anchor"></a><h3 class="tsd-anchor-link"><span class="tsd-flag ts-flagStatic">Static</span> description<a href="#description" aria-label="Permalink" class="tsd-anchor-icon"><svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-link" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M10 14a3.5 3.5 0 0 0 5 0l4 -4a3.5 3.5 0 0 0 -5 -5l-.5 .5"></path><path d="M14 10a3.5 3.5 0 0 0 -5 0l-4 4a3.5 3.5 0 0 0 5 5l.5 -.5"></path></svg></a></h3><div class="tsd-signature tsd-kind-icon">description<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> = &#39;&#39;</span></div><aside class="tsd-sources"><ul><li>Defined in <a href="https://github.com/MatrixAI/js-errors/blob/master/src/AbstractError.ts#L13">src/AbstractError.ts:13</a></li></ul></aside><div class="tsd-comment tsd-typography"><div class="lead">
+<p>Static description of exception</p>
+</div></div></section><section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-static tsd-is-external"><a id="prepareStackTrace" class="tsd-anchor"></a><h3 class="tsd-anchor-link"><span class="tsd-flag ts-flagStatic">Static</span> <span class="tsd-flag ts-flagOptional">Optional</span> prepare<wbr/>Stack<wbr/>Trace<a href="#prepareStackTrace" aria-label="Permalink" class="tsd-anchor-icon"><svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-link" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M10 14a3.5 3.5 0 0 0 5 0l4 -4a3.5 3.5 0 0 0 -5 -5l-.5 .5"></path><path d="M14 10a3.5 3.5 0 0 0 -5 0l-4 4a3.5 3.5 0 0 0 5 5l.5 -.5"></path></svg></a></h3><div class="tsd-signature tsd-kind-icon">prepare<wbr/>Stack<wbr/>Trace<span class="tsd-signature-symbol">?:</span> <span class="tsd-signature-symbol">(</span>err<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Error</span>, stackTraces<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">CallSite</span><span class="tsd-signature-symbol">[]</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol"> =&gt; </span><span class="tsd-signature-type">any</span></div><aside class="tsd-sources"><p>Inherited from CustomError.prepareStackTrace</p><ul><li>Defined in node_modules/@types/node/globals.d.ts:11</li></ul></aside><div class="tsd-type-declaration"><h4>Type declaration</h4><ul class="tsd-parameters"><li class="tsd-parameter-signature"><ul class="tsd-signatures tsd-kind-type-literal tsd-parent-kind-class"><li class="tsd-signature tsd-kind-icon"><span class="tsd-signature-symbol">(</span>err<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Error</span>, stackTraces<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">CallSite</span><span class="tsd-signature-symbol">[]</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">any</span></li></ul><ul class="tsd-descriptions"><li class="tsd-description"><div class="tsd-comment tsd-typography"><div class="lead">
+<p>Optional override for formatting stack traces</p>
+</div><dl class="tsd-comment-tags"><dt>see</dt><dd><p><a href="https://v8.dev/docs/stack-trace-api#customizing-stack-traces">https://v8.dev/docs/stack-trace-api#customizing-stack-traces</a></p>
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-<html class="default no-js">
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-	<meta name="description" content="Documentation for @matrixai/typescript-demo-lib">
-	<meta name="viewport" content="width=device-width, initial-scale=1">
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-	<script async src="assets/js/search.js" id="search-script"></script>
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-	<div class="tsd-page-toolbar">
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-						<li class="state failure">The search index is not available</li>
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-					<a href="index.html" class="title">@matrixai/typescript-demo-lib</a>
-				</div>
-				<div class="table-cell" id="tsd-widgets">
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-			<h1>@matrixai/typescript-demo-lib</h1>
-		</div>
-	</div>
-</header>
-<div class="container container-main">
-	<div class="row">
-		<div class="col-8 col-content">
-			<div class="tsd-panel tsd-typography">
-				<a href="#typescript-demo-lib" id="typescript-demo-lib" style="color: inherit; text-decoration: none;">
-					<h1>TypeScript-Demo-Lib</h1>
-				</a>
-				<p><a href="https://gitlab.com/MatrixAI/open-source/TypeScript-Demo-Lib/commits/master"><img src="https://gitlab.com/MatrixAI/open-source/TypeScript-Demo-Lib/badges/master/pipeline.svg" alt="pipeline status"></a></p>
-				<a href="#installation" id="installation" style="color: inherit; text-decoration: none;">
-					<h2>Installation</h2>
-				</a>
-				<p>Note that JavaScript libraries are not packaged in Nix. Only JavaScript applications are.</p>
-				<p>Building the package:</p>
-				<pre><code class="language-sh"><span style="color: #000000">nix-build -E </span><span style="color: #A31515">&#039;(import ./pkgs.nix).callPackage ./default.nix {}&#039;</span>
-</code></pre>
-				<p>Building the releases:</p>
-				<pre><code class="language-sh"><span style="color: #000000">nix-build ./release.nix --attr application</span>
-<span style="color: #000000">nix-build ./release.nix --attr docker</span>
-</code></pre>
-				<p>Install into Nix user profile:</p>
-				<pre><code class="language-sh"><span style="color: #000000">nix-env -f ./release.nix --install --attr application</span>
-</code></pre>
-				<p>Install into Docker:</p>
-				<pre><code class="language-sh"><span style="color: #000000">loaded=</span><span style="color: #A31515">&quot;$(docker load --input &quot;$(nix-build ./release.nix --attr docker)&quot;)&quot;</span>
-<span style="color: #000000">image=</span><span style="color: #A31515">&quot;$(cut -d&#039; &#039; -f3 </span><span style="color: #000000">&lt;&lt;&lt;</span><span style="color: #A31515"> &quot;$loaded&quot;)&quot;</span>
-<span style="color: #000000">docker run -it </span><span style="color: #A31515">&quot;</span><span style="color: #001080">$image</span><span style="color: #A31515">&quot;</span>
-</code></pre>
-				<a href="#development" id="development" style="color: inherit; text-decoration: none;">
-					<h2>Development</h2>
-				</a>
-				<p>Run <code>nix-shell</code>, and once you&#39;re inside, you can use:</p>
-				<pre><code class="language-sh"><span style="color: #008000"># install (or reinstall packages from package.json)</span>
-<span style="color: #000000">npm install</span>
-<span style="color: #008000"># build the dist</span>
-<span style="color: #000000">npm run build</span>
-<span style="color: #008000"># run the repl (this allows you to import from ./src)</span>
-<span style="color: #000000">npm run ts-node</span>
-<span style="color: #008000"># run the tests</span>
-<span style="color: #000000">npm run </span><span style="color: #795E26">test</span>
-<span style="color: #008000"># lint the source code</span>
-<span style="color: #000000">npm run lint</span>
-<span style="color: #008000"># automatically fix the source</span>
-<span style="color: #000000">npm run lintfix</span>
-</code></pre>
-				<a href="#calling-executables" id="calling-executables" style="color: inherit; text-decoration: none;">
-					<h3>Calling Executables</h3>
-				</a>
-				<p>When calling executables in development, use this style:</p>
-				<pre><code><span style="color: #001080">npm</span><span style="color: #000000"> </span><span style="color: #001080">run</span><span style="color: #000000"> </span><span style="color: #001080">typescript</span><span style="color: #000000">-</span><span style="color: #001080">demo</span><span style="color: #000000">-</span><span style="color: #001080">lib</span><span style="color: #000000"> -- </span><span style="color: #001080">p1</span><span style="color: #000000"> </span><span style="color: #001080">p2</span><span style="color: #000000"> </span><span style="color: #001080">p3</span>
-</code></pre>
-				<p>The <code>--</code> is necessary to make <code>npm</code> understand that the parameters are for your own executable, and not parameters to <code>npm</code>.</p>
-				<a href="#using-the-repl" id="using-the-repl" style="color: inherit; text-decoration: none;">
-					<h3>Using the REPL</h3>
-				</a>
-				<pre><code><span style="color: #001080">$</span><span style="color: #000000"> </span><span style="color: #001080">npm</span><span style="color: #000000"> </span><span style="color: #001080">run</span><span style="color: #000000"> </span><span style="color: #001080">ts</span><span style="color: #000000">-</span><span style="color: #001080">node</span>
-<span style="color: #000000">&gt; </span><span style="color: #AF00DB">import</span><span style="color: #000000"> </span><span style="color: #001080">fs</span><span style="color: #000000"> </span><span style="color: #AF00DB">from</span><span style="color: #000000"> </span><span style="color: #A31515">&#039;fs&#039;</span><span style="color: #000000">;</span>
-<span style="color: #000000">&gt; </span><span style="color: #001080">fs</span>
-<span style="color: #000000">&gt; </span><span style="color: #AF00DB">import</span><span style="color: #000000"> { </span><span style="color: #001080">Library</span><span style="color: #000000"> } </span><span style="color: #AF00DB">from</span><span style="color: #000000"> </span><span style="color: #A31515">&#039;@&#039;</span><span style="color: #000000">;</span>
-<span style="color: #000000">&gt; </span><span style="color: #001080">Library</span>
-<span style="color: #000000">&gt; </span><span style="color: #AF00DB">import</span><span style="color: #000000"> </span><span style="color: #001080">Library</span><span style="color: #000000"> </span><span style="color: #AF00DB">as</span><span style="color: #000000"> </span><span style="color: #001080">Library2</span><span style="color: #000000"> </span><span style="color: #AF00DB">from</span><span style="color: #000000"> </span><span style="color: #A31515">&#039;./src/lib/Library&#039;</span><span style="color: #000000">;</span>
-</code></pre>
-				<p>You can also create test files in <code>./src</code>, and run them with <code>npm run ts-node ./src/test.ts</code>.</p>
-				<p>This allows you to test individual pieces of typescript code, and it makes it easier when doing large scale architecting of TypeScript code.</p>
-				<a href="#path-aliases" id="path-aliases" style="color: inherit; text-decoration: none;">
-					<h3>Path Aliases</h3>
-				</a>
-				<p>Due to <a href="https://github.com/microsoft/TypeScript/issues/10866">https://github.com/microsoft/TypeScript/issues/10866</a>, you cannot use path aliases without a bundler like Webpack to further transform the generated JavaScript code in order to resolve the path aliases. Because this is a simple library demonstration, there&#39;s no need to use a bundler. In fact, for such libraries, it is far more efficient to not bundle the code.</p>
-				<p>However, we have left the path alias configuration in <code>tsconfig.json</code>, <code>jest.config.js</code> and in the tests we are making use of the <code>@</code> alias.</p>
-				<a href="#native-module-toolchain" id="native-module-toolchain" style="color: inherit; text-decoration: none;">
-					<h3>Native Module Toolchain</h3>
-				</a>
-				<p>There are some nuances when packaging with native modules.
-				Included native modules are level witch include leveldown and utp-native.</p>
-				<p>If a module is not set to public then pkg defaults to including it as bytecode.
-				To avoid this breaking with the <code>--no-bytecode</code> flag we need to add <code>--public-packages &quot;*&quot;</code></p>
-				<a href="#leveldown" id="leveldown" style="color: inherit; text-decoration: none;">
-					<h4>leveldown</h4>
-				</a>
-				<p>To get leveldown to work with pkg we need to include the prebuilds with the executable.
-					after building with pkg you need to copy from <code>node_modules/leveldown/prebuilds</code> -&gt; <code>path_to_executable/prebuilds</code>
-				You only need to include the prebuilds for the arch you are targeting. e.g. for linux-x64 you need <code>prebuild/linux-x64</code>.</p>
-				<p>The folder structure for the executable should look like this.</p>
-				<ul>
-					<li>linux_executable_elf</li>
-					<li>prebuilds<ul>
-							<li>linux-x64<ul>
-									<li>(node files)</li>
-								</ul>
-							</li>
-						</ul>
-					</li>
-				</ul>
-				<a href="#utp-native" id="utp-native" style="color: inherit; text-decoration: none;">
-					<h4>utp-native</h4>
-				</a>
-				<p>Including utp-native is simpler, you just need to add it as an asset for pkg.
-				Add the following lines to the package.json.</p>
-				<pre><code class="language-json"><span style="color: #A31515">&quot;pkg&quot;</span><span style="color: #000000">: {</span>
-<span style="color: #000000">    </span><span style="color: #0451A5">&quot;assets&quot;</span><span style="color: #000000">: </span><span style="color: #A31515">&quot;node_modules/utp-native/**/*&quot;</span>
-<span style="color: #000000">  }</span>
-</code></pre>
-				<a href="#threadsjs" id="threadsjs" style="color: inherit; text-decoration: none;">
-					<h4>threads.js</h4>
-				</a>
-				<p>To make sure that the worker threads work properly you need to include the compiled worker scripts as an asset.
-				This can be fixed by adding the following to <code>package.json</code></p>
-				<pre><code class="language-json"><span style="color: #A31515">&quot;pkg&quot;</span><span style="color: #000000">: {</span>
-<span style="color: #000000">    </span><span style="color: #0451A5">&quot;assets&quot;</span><span style="color: #000000">: </span><span style="color: #A31515">&quot;dist/bin/worker.js&quot;</span>
-<span style="color: #000000">  }</span>
-</code></pre>
-				<p>If you need to include multiple assets then add them as an array.</p>
-				<pre><code class="language-json"><span style="color: #A31515">&quot;pkg&quot;</span><span style="color: #000000">: {</span>
-<span style="color: #000000">    </span><span style="color: #0451A5">&quot;assets&quot;</span><span style="color: #000000">: [</span>
-<span style="color: #000000">      </span><span style="color: #A31515">&quot;node_modules/utp-native/**/*&quot;</span><span style="color: #000000">,</span>
-<span style="color: #000000">      </span><span style="color: #A31515">&quot;dist/bin/worker.js&quot;</span>
-<span style="color: #000000">    ]</span>
-<span style="color: #000000">  }</span>
-</code></pre>
-				<a href="#integration-into-nix" id="integration-into-nix" style="color: inherit; text-decoration: none;">
-					<h4>Integration into Nix</h4>
-				</a>
-				<p>Nix build uses node2nix to create the dependencies of the node modules. this does a fairly good job of detecting dependencies but with native modules it may fail to detect CLI tools like <code>node-gyp-build</code>.</p>
-				<p>To ensure the proper dependencies exist while building we need to bring in these utilities during the build:</p>
-				<pre><code><span style="color: #001080">buildInputs</span><span style="color: #000000"> = </span><span style="color: #001080">attrs</span><span style="color: #000000">.</span><span style="color: #001080">buildInputs</span><span style="color: #000000"> ++ [ </span><span style="color: #001080">nodePackages</span><span style="color: #000000">.</span><span style="color: #001080">node</span><span style="color: #000000">-</span><span style="color: #001080">gyp</span><span style="color: #000000">-</span><span style="color: #001080">build</span><span style="color: #000000"> ];</span>
-</code></pre>
-				<p>This has to be done to both <code>node2nixProd</code> and <code>node2nixDev</code>.</p>
-				<a href="#docs-generation" id="docs-generation" style="color: inherit; text-decoration: none;">
-					<h3>Docs Generation</h3>
-				</a>
-				<pre><code class="language-sh"><span style="color: #000000">npm run docs</span>
-</code></pre>
-				<p>See the docs at: <a href="https://matrixai.github.io/TypeScript-Demo-Lib/">https://matrixai.github.io/TypeScript-Demo-Lib/</a></p>
-				<a href="#publishing" id="publishing" style="color: inherit; text-decoration: none;">
-					<h3>Publishing</h3>
-				</a>
-				<pre><code class="language-sh"><span style="color: #008000"># npm login</span>
-<span style="color: #000000">npm version patch </span><span style="color: #008000"># major/minor/patch</span>
-<span style="color: #000000">npm run build</span>
-<span style="color: #000000">npm publish --access public</span>
-<span style="color: #000000">git push</span>
-<span style="color: #000000">git push --tags</span>
-</code></pre>
-			</div>
-		</div>
-		<div class="col-4 col-menu menu-sticky-wrap menu-highlight">
-			<nav class="tsd-navigation primary">
-				<ul>
-					<li class=" ">
-						<a href="modules.html">Modules</a>
-					</li>
-					<li class=" tsd-kind-module">
-						<a href="modules/bin_typescript_demo_lib.html">bin/typescript-<wbr>demo-<wbr>lib</a>
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-						<a href="modules/lib_workers_test_workers.html">lib/workers/test-<wbr>workers</a>
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-</div>
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-</html>
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+<!DOCTYPE html><html class="default"><head><meta charSet="utf-8"/><meta http-equiv="x-ua-compatible" content="IE=edge"/><title>@matrixai/errors</title><meta name="description" content="Documentation for @matrixai/errors"/><meta name="viewport" content="width=device-width, initial-scale=1"/><link rel="stylesheet" href="assets/style.css"/><link rel="stylesheet" href="assets/highlight.css"/><script async src="assets/search.js" id="search-script"></script></head><body><script>document.body.classList.add(localStorage.getItem("tsd-theme") || "os")</script><header><div class="tsd-page-toolbar"><div class="container"><div class="table-wrap"><div class="table-cell" id="tsd-search" data-base="."><div class="field"><label for="tsd-search-field" class="tsd-widget search no-caption">Search</label><input type="text" id="tsd-search-field"/></div><ul class="results"><li class="state loading">Preparing search index...</li><li class="state failure">The search index is not available</li></ul><a href="index.html" class="title">@matrixai/errors</a></div><div class="table-cell" id="tsd-widgets"><div id="tsd-filter"><a href="#" class="tsd-widget options no-caption" data-toggle="options">Options</a><div class="tsd-filter-group"><div class="tsd-select" id="tsd-filter-visibility"><span class="tsd-select-label">All</span><ul class="tsd-select-list"><li data-value="public">Public</li><li data-value="protected">Public/Protected</li><li data-value="private" class="selected">All</li></ul></div> <input type="checkbox" id="tsd-filter-inherited" checked/><label class="tsd-widget" for="tsd-filter-inherited">Inherited</label><input type="checkbox" id="tsd-filter-externals" checked/><label class="tsd-widget" for="tsd-filter-externals">Externals</label></div></div><a href="#" class="tsd-widget menu no-caption" data-toggle="menu">Menu</a></div></div></div></div><div class="tsd-page-title"><div class="container"><h1>@matrixai/errors</h1></div></div></header><div class="container container-main"><div class="row"><div class="col-8 col-content"><div class="tsd-panel tsd-typography">
+<a href="#js-errors" id="js-errors" style="color: inherit; text-decoration: none;">
+  <h1>js-errors</h1>
+</a>
+<p><a href="https://gitlab.com/MatrixAI/open-source/js-errors/commits/master"><img src="https://gitlab.com/MatrixAI/open-source/js-errors/badges/master/pipeline.svg" alt="pipeline status"></a></p>
+<p>Exception system with error chaining.</p>
+
+<a href="#installation" id="installation" style="color: inherit; text-decoration: none;">
+  <h2>Installation</h2>
+</a>
+<pre><code class="language-sh"><span class="hl-0">npm install --save @matrixai/errors</span>
+</code></pre>
+
+<a href="#development" id="development" style="color: inherit; text-decoration: none;">
+  <h2>Development</h2>
+</a>
+<p>Run <code>nix-shell</code>, and once you&#39;re inside, you can use:</p>
+<pre><code class="language-sh"><span class="hl-1"># install (or reinstall packages from package.json)</span><br/><span class="hl-0">npm install</span><br/><span class="hl-1"># build the dist</span><br/><span class="hl-0">npm run build</span><br/><span class="hl-1"># run the repl (this allows you to import from ./src)</span><br/><span class="hl-0">npm run ts-node</span><br/><span class="hl-1"># run the tests</span><br/><span class="hl-0">npm run </span><span class="hl-2">test</span><br/><span class="hl-1"># lint the source code</span><br/><span class="hl-0">npm run lint</span><br/><span class="hl-1"># automatically fix the source</span><br/><span class="hl-0">npm run lintfix</span>
+</code></pre>
+
+<a href="#docs-generation" id="docs-generation" style="color: inherit; text-decoration: none;">
+  <h3>Docs Generation</h3>
+</a>
+<pre><code class="language-sh"><span class="hl-0">npm run docs</span>
+</code></pre>
+<p>See the docs at: <a href="https://matrixai.github.io/TypeScript-Demo-Lib/">https://matrixai.github.io/TypeScript-Demo-Lib/</a></p>
+
+<a href="#publishing" id="publishing" style="color: inherit; text-decoration: none;">
+  <h3>Publishing</h3>
+</a>
+<pre><code class="language-sh"><span class="hl-1"># npm login</span><br/><span class="hl-0">npm version patch </span><span class="hl-1"># major/minor/patch</span><br/><span class="hl-0">npm run build</span><br/><span class="hl-0">npm publish --access public</span><br/><span class="hl-0">git push</span><br/><span class="hl-0">git push --tags</span>
+</code></pre>
+</div></div><div class="col-4 col-menu menu-sticky-wrap menu-highlight"><nav class="tsd-navigation primary"><ul><li class="current"><a href="modules.html">Exports</a></li></ul></nav><nav class="tsd-navigation secondary menu-sticky"><ul><li class="tsd-kind-class tsd-has-type-parameter"><a href="classes/AbstractError.html" class="tsd-kind-icon">Abstract<wbr/>Error</a></li><li class="tsd-kind-type-alias"><a href="modules.html#POJO" class="tsd-kind-icon">POJO</a></li></ul></nav></div></div></div><footer class="with-border-bottom"><div class="container"><h2>Legend</h2><div class="tsd-legend-group"><ul class="tsd-legend"><li class="tsd-kind-property tsd-parent-kind-class"><span class="tsd-kind-icon">Property</span></li></ul><ul class="tsd-legend"><li class="tsd-kind-property tsd-parent-kind-class tsd-is-static"><span class="tsd-kind-icon">Static property</span></li></ul></div><h2>Settings</h2><p>Theme <select id="theme"><option value="os">OS</option><option value="light">Light</option><option value="dark">Dark</option></select></p></div></footer><div class="container tsd-generator"><p>Generated using <a href="https://typedoc.org/" target="_blank">TypeDoc</a></p></div><div class="overlay"></div><script src="assets/main.js"></script></body></html>
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+<!DOCTYPE html><html class="default"><head><meta charSet="utf-8"/><meta http-equiv="x-ua-compatible" content="IE=edge"/><title>@matrixai/errors</title><meta name="description" content="Documentation for @matrixai/errors"/><meta name="viewport" content="width=device-width, initial-scale=1"/><link rel="stylesheet" href="assets/style.css"/><link rel="stylesheet" href="assets/highlight.css"/><script async src="assets/search.js" id="search-script"></script></head><body><script>document.body.classList.add(localStorage.getItem("tsd-theme") || "os")</script><header><div class="tsd-page-toolbar"><div class="container"><div class="table-wrap"><div class="table-cell" id="tsd-search" data-base="."><div class="field"><label for="tsd-search-field" class="tsd-widget search no-caption">Search</label><input type="text" id="tsd-search-field"/></div><ul class="results"><li class="state loading">Preparing search index...</li><li class="state failure">The search index is not available</li></ul><a href="index.html" class="title">@matrixai/errors</a></div><div class="table-cell" id="tsd-widgets"><div id="tsd-filter"><a href="#" class="tsd-widget options no-caption" data-toggle="options">Options</a><div class="tsd-filter-group"><div class="tsd-select" id="tsd-filter-visibility"><span class="tsd-select-label">All</span><ul class="tsd-select-list"><li data-value="public">Public</li><li data-value="protected">Public/Protected</li><li data-value="private" class="selected">All</li></ul></div> <input type="checkbox" id="tsd-filter-inherited" checked/><label class="tsd-widget" for="tsd-filter-inherited">Inherited</label><input type="checkbox" id="tsd-filter-externals" checked/><label class="tsd-widget" for="tsd-filter-externals">Externals</label></div></div><a href="#" class="tsd-widget menu no-caption" data-toggle="menu">Menu</a></div></div></div></div><div class="tsd-page-title"><div class="container"><h1>@matrixai/errors</h1></div></div></header><div class="container container-main"><div class="row"><div class="col-8 col-content"><section class="tsd-panel-group tsd-index-group"><h2>Index</h2><section class="tsd-panel tsd-index-panel"><div class="tsd-index-content"><section class="tsd-index-section "><h3>Classes</h3><ul class="tsd-index-list"><li class="tsd-kind-class tsd-has-type-parameter"><a href="classes/AbstractError.html" class="tsd-kind-icon">Abstract<wbr/>Error</a></li></ul></section><section class="tsd-index-section "><h3>Type aliases</h3><ul class="tsd-index-list"><li class="tsd-kind-type-alias"><a href="modules.html#POJO" class="tsd-kind-icon">POJO</a></li></ul></section></div></section></section><section class="tsd-panel-group tsd-member-group "><h2>Type aliases</h2><section class="tsd-panel tsd-member tsd-kind-type-alias"><a id="POJO" class="tsd-anchor"></a><h3 class="tsd-anchor-link">POJO<a href="#POJO" aria-label="Permalink" class="tsd-anchor-icon"><svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-link" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M10 14a3.5 3.5 0 0 0 5 0l4 -4a3.5 3.5 0 0 0 -5 -5l-.5 .5"></path><path d="M14 10a3.5 3.5 0 0 0 -5 0l-4 4a3.5 3.5 0 0 0 5 5l.5 -.5"></path></svg></a></h3><div class="tsd-signature tsd-kind-icon">POJO<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-symbol">{}</span></div><aside class="tsd-sources"><ul><li>Defined in <a href="https://github.com/MatrixAI/js-errors/blob/master/src/types.ts#L4">src/types.ts:4</a></li></ul></aside><div class="tsd-comment tsd-typography"><div class="lead">
+<p>Plain data dictionary</p>
+</div></div><div class="tsd-type-declaration"><h4>Type declaration</h4><ul class="tsd-parameters"><li class="tsd-parameter-index-signature"><h5><span class="tsd-signature-symbol">[</span>key: <span class="tsd-signature-type">string</span><span class="tsd-signature-symbol">]: </span><span class="tsd-signature-type">any</span></h5></li></ul></div></section></section></div><div class="col-4 col-menu menu-sticky-wrap menu-highlight"><nav class="tsd-navigation primary"><ul><li class="current"><a href="modules.html">Exports</a></li></ul></nav><nav class="tsd-navigation secondary menu-sticky"><ul><li class="tsd-kind-class tsd-has-type-parameter"><a href="classes/AbstractError.html" class="tsd-kind-icon">Abstract<wbr/>Error</a></li><li class="tsd-kind-type-alias"><a href="modules.html#POJO" class="tsd-kind-icon">POJO</a></li></ul></nav></div></div></div><footer class="with-border-bottom"><div class="container"><h2>Legend</h2><div class="tsd-legend-group"><ul class="tsd-legend"><li class="tsd-kind-property tsd-parent-kind-class"><span class="tsd-kind-icon">Property</span></li></ul><ul class="tsd-legend"><li class="tsd-kind-property tsd-parent-kind-class tsd-is-static"><span class="tsd-kind-icon">Static property</span></li></ul></div><h2>Settings</h2><p>Theme <select id="theme"><option value="os">OS</option><option value="light">Light</option><option value="dark">Dark</option></select></p></div></footer><div class="container tsd-generator"><p>Generated using <a href="https://typedoc.org/" target="_blank">TypeDoc</a></p></div><div class="overlay"></div><script src="assets/main.js"></script></body></html>
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-			<ul class="tsd-breadcrumb">
-				<li>
-					<a href="../modules.html">@matrixai/typescript-demo-lib</a>
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-				<li>
-					<a href="bin_typescript_demo_lib.html">bin/typescript-demo-lib</a>
-				</li>
-			</ul>
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diff --git a/docs/modules/utils.html b/docs/modules/utils.html
deleted file mode 100644
index 2d7961a..0000000
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+++ /dev/null
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-<!doctype html>
-<html class="default no-js">
-<head>
-	<meta charset="utf-8">
-	<meta http-equiv="X-UA-Compatible" content="IE=edge">
-	<title>utils | @matrixai/typescript-demo-lib</title>
-	<meta name="description" content="Documentation for @matrixai/typescript-demo-lib">
-	<meta name="viewport" content="width=device-width, initial-scale=1">
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-			<h1>Module utils</h1>
-		</div>
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-					<ul class="tsd-signatures tsd-kind-function tsd-parent-kind-module">
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diff --git a/nix/leveldown.patch b/nix/leveldown.patch
deleted file mode 100644
index 0d35bab..0000000
--- a/nix/leveldown.patch
+++ /dev/null
@@ -1,14 +0,0 @@
---- dictionary/leveldown.js	2021-08-04 15:43:31.836337623 +1000
-+++ dictionary/leveldown_.js	2021-08-04 15:43:11.977266316 +1000
-@@ -1,10 +1,3 @@
- 'use strict';
-
--module.exports = {
--  pkg: {
--    patches: {
--      'binding.js': ['__dirname', "require('path').dirname(process.execPath)"],
--    },
--    deployFiles: [['prebuilds', 'prebuilds', 'directory']],
--  },
--};
-+module.exports = {};
diff --git a/package-lock.json b/package-lock.json
index 38a3145..e520210 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
-  "name": "@matrixai/typescript-demo-lib",
-  "version": "1.2.0",
+  "name": "@matrixai/errors",
+  "version": "1.0.0",
   "lockfileVersion": 1,
   "requires": true,
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-        "end-of-stream": "^1.4.1",
-        "fs-constants": "^1.0.0",
-        "inherits": "^2.0.3",
-        "readable-stream": "^3.1.1"
-      }
-    },
     "terminal-link": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/terminal-link/-/terminal-link-2.1.1.tgz",
@@ -5143,38 +4270,12 @@
       "integrity": "sha1-f17oI66AUgfACvLfSoTsP8+lcLQ=",
       "dev": true
     },
-    "threads": {
-      "version": "1.7.0",
-      "resolved": "https://registry.npmjs.org/threads/-/threads-1.7.0.tgz",
-      "integrity": "sha512-Mx5NBSHX3sQYR6iI9VYbgHKBLisyB+xROCBGjjWm1O9wb9vfLxdaGtmT/KCjUqMsSNW6nERzCW3T6H43LqjDZQ==",
-      "requires": {
-        "callsites": "^3.1.0",
-        "debug": "^4.2.0",
-        "is-observable": "^2.1.0",
-        "observable-fns": "^0.6.1",
-        "tiny-worker": ">= 2"
-      }
-    },
     "throat": {
       "version": "6.0.1",
       "resolved": "https://registry.npmjs.org/throat/-/throat-6.0.1.tgz",
       "integrity": "sha512-8hmiGIJMDlwjg7dlJ4yKGLK8EsYqKgPWbG3b4wjJddKNwc7N7Dpn08Df4szr/sZdMVeOstrdYSsqzX6BYbcB+w==",
       "dev": true
     },
-    "timeout-refresh": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/timeout-refresh/-/timeout-refresh-1.0.3.tgz",
-      "integrity": "sha512-Mz0CX4vBGM5lj8ttbIFt7o4ZMxk/9rgudJRh76EvB7xXZMur7T/cjRiH2w4Fmkq0zxf2QpM8IFvOSRn8FEu3gA=="
-    },
-    "tiny-worker": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/tiny-worker/-/tiny-worker-2.3.0.tgz",
-      "integrity": "sha512-pJ70wq5EAqTAEl9IkGzA+fN0836rycEuz2Cn6yeZ6FRzlVS5IDOkFHpIoEsksPRQV34GDqXm65+OlnZqUSyK2g==",
-      "optional": true,
-      "requires": {
-        "esm": "^3.2.25"
-      }
-    },
     "tmpl": {
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/tmpl/-/tmpl-1.0.5.tgz",
@@ -5216,6 +4317,11 @@
         "punycode": "^2.1.1"
       }
     },
+    "ts-custom-error": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/ts-custom-error/-/ts-custom-error-3.2.0.tgz",
+      "integrity": "sha512-cBvC2QjtvJ9JfWLvstVnI45Y46Y5dMxIaG1TDMGAD/R87hpvqFL+7LhvUDhnRCfOnx/xitollFWWvUKKKhbN0A=="
+    },
     "ts-jest": {
       "version": "27.0.7",
       "resolved": "https://registry.npmjs.org/ts-jest/-/ts-jest-27.0.7.tgz",
@@ -5244,17 +4350,38 @@
       }
     },
     "ts-node": {
-      "version": "9.1.1",
-      "resolved": "https://registry.npmjs.org/ts-node/-/ts-node-9.1.1.tgz",
-      "integrity": "sha512-hPlt7ZACERQGf03M253ytLY3dHbGNGrAq9qIHWUY9XHYl1z7wYngSr3OQ5xmui8o2AaxsONxIzjafLUiWBo1Fg==",
-      "dev": true,
-      "requires": {
+      "version": "10.7.0",
+      "resolved": "https://registry.npmjs.org/ts-node/-/ts-node-10.7.0.tgz",
+      "integrity": "sha512-TbIGS4xgJoX2i3do417KSaep1uRAW/Lu+WAL2doDHC0D6ummjirVOXU5/7aiZotbQ5p1Zp9tP7U6cYhA0O7M8A==",
+      "dev": true,
+      "requires": {
+        "@cspotcode/source-map-support": "0.7.0",
+        "@tsconfig/node10": "^1.0.7",
+        "@tsconfig/node12": "^1.0.7",
+        "@tsconfig/node14": "^1.0.0",
+        "@tsconfig/node16": "^1.0.2",
+        "acorn": "^8.4.1",
+        "acorn-walk": "^8.1.1",
         "arg": "^4.1.0",
         "create-require": "^1.1.0",
         "diff": "^4.0.1",
         "make-error": "^1.1.1",
-        "source-map-support": "^0.5.17",
+        "v8-compile-cache-lib": "^3.0.0",
         "yn": "3.1.1"
+      },
+      "dependencies": {
+        "acorn": {
+          "version": "8.7.0",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.7.0.tgz",
+          "integrity": "sha512-V/LGr1APy+PXIwKebEWrkZPwoeoF+w1jiOBUmuxuiUIaOHtob8Qc9BTrYo7VuI5fR8tqsy+buA2WFooR5olqvQ==",
+          "dev": true
+        },
+        "acorn-walk": {
+          "version": "8.2.0",
+          "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-8.2.0.tgz",
+          "integrity": "sha512-k+iyHEuPgSw6SbuDpGQM+06HQUa04DZ3o+F6CSzXMvvI5KMvnaEqXe+YVe555R9nn6GPt404fos4wcgpw12SDA==",
+          "dev": true
+        }
       }
     },
     "tsconfig-paths": {
@@ -5284,15 +4411,6 @@
         "tslib": "^1.8.1"
       }
     },
-    "tunnel-agent": {
-      "version": "0.6.0",
-      "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
-      "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
-      "dev": true,
-      "requires": {
-        "safe-buffer": "^5.0.1"
-      }
-    },
     "type-check": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.4.0.tgz",
@@ -5324,27 +4442,38 @@
       }
     },
     "typedoc": {
-      "version": "0.21.9",
-      "resolved": "https://registry.npmjs.org/typedoc/-/typedoc-0.21.9.tgz",
-      "integrity": "sha512-VRo7aII4bnYaBBM1lhw4bQFmUcDQV8m8tqgjtc7oXl87jc1Slbhfw2X5MccfcR2YnEClHDWgsiQGgNB8KJXocA==",
+      "version": "0.22.13",
+      "resolved": "https://registry.npmjs.org/typedoc/-/typedoc-0.22.13.tgz",
+      "integrity": "sha512-NHNI7Dr6JHa/I3+c62gdRNXBIyX7P33O9TafGLd07ur3MqzcKgwTvpg18EtvCLHJyfeSthAtCLpM7WkStUmDuQ==",
       "dev": true,
       "requires": {
-        "glob": "^7.1.7",
-        "handlebars": "^4.7.7",
+        "glob": "^7.2.0",
         "lunr": "^2.3.9",
-        "marked": "^3.0.2",
-        "minimatch": "^3.0.0",
-        "progress": "^2.0.3",
-        "shiki": "^0.9.8",
-        "typedoc-default-themes": "^0.12.10"
+        "marked": "^4.0.12",
+        "minimatch": "^5.0.1",
+        "shiki": "^0.10.1"
+      },
+      "dependencies": {
+        "brace-expansion": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
+          "integrity": "sha512-XnAIvQ8eM+kC6aULx6wuQiwVsnzsi9d3WxzV3FpWTGA19F621kwdbsAcFKXgKUHZWsy+mY6iL1sHTxWEFCytDA==",
+          "dev": true,
+          "requires": {
+            "balanced-match": "^1.0.0"
+          }
+        },
+        "minimatch": {
+          "version": "5.0.1",
+          "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-5.0.1.tgz",
+          "integrity": "sha512-nLDxIFRyhDblz3qMuq+SoRZED4+miJ/G+tdDrjkkkRnjAsBexeGpgjLEQ0blJy7rHhR2b93rhQY4SvyWu9v03g==",
+          "dev": true,
+          "requires": {
+            "brace-expansion": "^2.0.1"
+          }
+        }
       }
     },
-    "typedoc-default-themes": {
-      "version": "0.12.10",
-      "resolved": "https://registry.npmjs.org/typedoc-default-themes/-/typedoc-default-themes-0.12.10.tgz",
-      "integrity": "sha512-fIS001cAYHkyQPidWXmHuhs8usjP5XVJjWB8oZGqkTowZaz3v7g3KDZeeqE82FBrmkAnIBOY3jgy7lnPnqATbA==",
-      "dev": true
-    },
     "typescript": {
       "version": "4.5.2",
       "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.5.2.tgz",
@@ -5390,13 +4519,6 @@
         }
       }
     },
-    "uglify-js": {
-      "version": "3.14.3",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.14.3.tgz",
-      "integrity": "sha512-mic3aOdiq01DuSVx0TseaEzMIVqebMZ0Z3vaeDhFEh9bsc24hV1TFvN74reA2vs08D0ZWfNjAcJ3UbVLaBss+g==",
-      "dev": true,
-      "optional": true
-    },
     "unbox-primitive": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/unbox-primitive/-/unbox-primitive-1.0.1.tgz",
@@ -5415,11 +4537,6 @@
       "integrity": "sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg==",
       "dev": true
     },
-    "unordered-set": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/unordered-set/-/unordered-set-2.0.1.tgz",
-      "integrity": "sha512-eUmNTPzdx+q/WvOHW0bgGYLWvWHNT3PTKEQLg0MAQhc0AHASHVHoP/9YytYd4RBVariqno/mEUhVZN98CmD7bg=="
-    },
     "uri-js": {
       "version": "4.4.1",
       "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.4.1.tgz",
@@ -5429,41 +4546,18 @@
         "punycode": "^2.1.0"
       }
     },
-    "util-deprecate": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
-      "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
-    },
-    "utp-native": {
-      "version": "2.5.3",
-      "resolved": "https://registry.npmjs.org/utp-native/-/utp-native-2.5.3.tgz",
-      "integrity": "sha512-sWTrWYXPhhWJh+cS2baPzhaZc89zwlWCfwSthUjGhLkZztyPhcQllo+XVVCbNGi7dhyRlxkWxN4NKU6FbA9Y8w==",
-      "requires": {
-        "napi-macros": "^2.0.0",
-        "node-gyp-build": "^4.2.0",
-        "readable-stream": "^3.0.2",
-        "timeout-refresh": "^1.0.0",
-        "unordered-set": "^2.0.1"
-      },
-      "dependencies": {
-        "node-gyp-build": {
-          "version": "4.3.0",
-          "resolved": "https://registry.npmjs.org/node-gyp-build/-/node-gyp-build-4.3.0.tgz",
-          "integrity": "sha512-iWjXZvmboq0ja1pUGULQBexmxq8CV4xBhX7VDOTbL7ZR4FOowwY/VOtRxBN/yKxmdGoIp4j5ysNT4u3S2pDQ3Q=="
-        }
-      }
-    },
-    "uuid": {
-      "version": "8.3.2",
-      "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
-      "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg=="
-    },
     "v8-compile-cache": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/v8-compile-cache/-/v8-compile-cache-2.3.0.tgz",
       "integrity": "sha512-l8lCEmLcLYZh4nbunNZvQCJc5pv7+RCwa8q/LdUx8u7lsWvPDKmpodJAJNwkAhJC//dFY48KuIEmjtd4RViDrA==",
       "dev": true
     },
+    "v8-compile-cache-lib": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/v8-compile-cache-lib/-/v8-compile-cache-lib-3.0.0.tgz",
+      "integrity": "sha512-mpSYqfsFvASnSn5qMiwrr4VKfumbPyONLCOPmsR3A6pTY/r0+tSaVbgPWSAIuzbk3lCTa+FForeTiO+wBQGkjA==",
+      "dev": true
+    },
     "v8-to-istanbul": {
       "version": "8.1.0",
       "resolved": "https://registry.npmjs.org/v8-to-istanbul/-/v8-to-istanbul-8.1.0.tgz",
@@ -5483,6 +4577,12 @@
         }
       }
     },
+    "vscode-oniguruma": {
+      "version": "1.6.2",
+      "resolved": "https://registry.npmjs.org/vscode-oniguruma/-/vscode-oniguruma-1.6.2.tgz",
+      "integrity": "sha512-KH8+KKov5eS/9WhofZR8M8dMHWN2gTxjMsG4jd04YhpbPR91fUj7rYQ2/XjeHCJWbg7X++ApRIU9NUwM2vTvLA==",
+      "dev": true
+    },
     "vscode-textmate": {
       "version": "5.2.0",
       "resolved": "https://registry.npmjs.org/vscode-textmate/-/vscode-textmate-5.2.0.tgz",
@@ -5570,33 +4670,12 @@
         "is-symbol": "^1.0.3"
       }
     },
-    "which-pm-runs": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/which-pm-runs/-/which-pm-runs-1.0.0.tgz",
-      "integrity": "sha1-Zws6+8VS4LVd9rd4DKdGFfI60cs=",
-      "dev": true
-    },
-    "wide-align": {
-      "version": "1.1.5",
-      "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.5.tgz",
-      "integrity": "sha512-eDMORYaPNZ4sQIuuYPDHdQvf4gyCF9rEEV/yPxGfwPkRodwEgiMUUXTx/dex+Me0wxx53S+NgUHaP7y3MGlDmg==",
-      "dev": true,
-      "requires": {
-        "string-width": "^1.0.2 || 2 || 3 || 4"
-      }
-    },
     "word-wrap": {
       "version": "1.2.3",
       "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.3.tgz",
       "integrity": "sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==",
       "dev": true
     },
-    "wordwrap": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
-      "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=",
-      "dev": true
-    },
     "wrap-ansi": {
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
diff --git a/package.json b/package.json
index 224cbb0..48073c0 100644
--- a/package.json
+++ b/package.json
@@ -1,63 +1,42 @@
 {
-  "name": "@matrixai/typescript-demo-lib",
-  "version": "1.2.0",
-  "bin": {
-    "typescript-demo-lib": "dist/bin/typescript-demo-lib.js"
-  },
+  "name": "@matrixai/errors",
+  "version": "1.0.0",
   "author": "Roger Qiu",
-  "description": "TypeScript Demo Library Project",
+  "description": "Exception System",
   "license": "Apache-2.0",
   "repository": {
     "type": "git",
-    "url": "https://github.com/MatrixAI/TypeScript-Demo-Lib.git"
+    "url": "https://github.com/MatrixAI/js-errors.git"
   },
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
-  "pkg": {
-    "assets": [
-      "node_modules/leveldown/**/*",
-      "node_modules/utp-native/**/*",
-      "node_modules/fd-lock/**/*"
-    ],
-    "scripts": [
-      "dist/lib/workers/worker.js"
-    ]
-  },
   "scripts": {
     "build": "rm -r ./dist || true; tsc -p ./tsconfig.build.json",
     "ts-node": "ts-node -r tsconfig-paths/register",
     "test": "jest",
     "lint": "eslint '{src,tests}/**/*.{js,ts}'",
     "lintfix": "eslint '{src,tests}/**/*.{js,ts}' --fix",
-    "docs": "rm -r ./docs || true; typedoc --gitRevision master --tsconfig ./tsconfig.build.json --out ./docs src && touch ./docs/.nojekyll",
-    "typescript-demo-lib": "ts-node -r tsconfig-paths/register --compiler typescript-cached-transpile --transpile-only src/bin/typescript-demo-lib.ts"
+    "docs": "rm -r ./docs || true; typedoc --gitRevision master --tsconfig ./tsconfig.build.json --out ./docs src && touch ./docs/.nojekyll"
   },
   "dependencies": {
-    "fd-lock": "^1.2.0",
-    "level": "^7.0.0",
-    "threads": "^1.6.5",
-    "utp-native": "^2.5.3",
-    "uuid": "^8.3.0"
+    "ts-custom-error": "^3.2.0"
   },
   "devDependencies": {
     "@types/jest": "^27.0.2",
     "@types/node": "^14.14.35",
-    "@typescript-eslint/eslint-plugin": "^4.12.0",
-    "@typescript-eslint/parser": "^4.12.0",
+    "@typescript-eslint/eslint-plugin": "^5.4.0",
+    "@typescript-eslint/parser": "^5.4.0",
     "eslint": "^7.17.0",
     "eslint-config-prettier": "^7.1.0",
     "eslint-plugin-import": "^2.25.2",
     "eslint-plugin-prettier": "^3.3.1",
     "jest": "^27.2.5",
-    "jest-mock-process": "^1.4.0",
-    "node-gyp-build": "4.2.3",
-    "pkg": "5.3.0",
     "prettier": "^2.2.1",
     "ts-jest": "^27.0.5",
-    "ts-node": "^9.1.1",
+    "ts-node": "^10.4.0",
     "tsconfig-paths": "^3.9.0",
-    "typedoc": "^0.21.5",
-    "typescript": "^4.1.3",
+    "typedoc": "^0.22.13",
+    "typescript": "^4.4.3",
     "typescript-cached-transpile": "0.0.6"
   }
 }
diff --git a/release.nix b/release.nix
deleted file mode 100644
index 794ae76..0000000
--- a/release.nix
+++ /dev/null
@@ -1,115 +0,0 @@
-{ pkgs ? import ./pkgs.nix {} }:
-
-with pkgs;
-let
-  utils = callPackage ./utils.nix {};
-  buildElf = arch:
-    stdenv.mkDerivation rec {
-      name = "${utils.basename}-${version}-linux-${arch}";
-      version = utils.node2nixDev.version;
-      src = "${utils.node2nixDev}/lib/node_modules/${utils.node2nixDev.packageName}";
-      buildInputs = [
-        utils.pkg
-      ];
-      PKG_CACHE_PATH = utils.pkgCachePath;
-      PKG_IGNORE_TAG = 1;
-      # ensure that native modules are built from source
-      npm_config_build_from_source = "true";
-      buildPhase = ''
-        cp ${./package.json} package.json
-        pkg . \
-          --targets linux-${arch} \
-          --no-bytecode \
-          --public \
-          --public-packages "*" \
-          --output out
-      '';
-      installPhase = ''
-        cp out $out
-      '';
-      dontFixup = true;
-    };
-  buildExe = arch:
-    stdenv.mkDerivation rec {
-      name = "${utils.basename}-${version}-win32-${arch}.exe";
-      version = utils.node2nixDev.version;
-      src = "${utils.node2nixDev}/lib/node_modules/${utils.node2nixDev.packageName}";
-      buildInputs = [
-        utils.pkg
-      ];
-      PKG_CACHE_PATH = utils.pkgCachePath;
-      PKG_IGNORE_TAG = 1;
-      # ensure that native modules are built from source
-      npm_config_build_from_source = "true";
-      buildPhase = ''
-        cp ${./package.json} package.json
-        pkg . \
-          --targets win-${arch} \
-          --no-bytecode \
-          --public \
-          --public-packages "*" \
-          --output out.exe
-      '';
-      installPhase = ''
-        cp out.exe $out
-      '';
-      dontFixup = true;
-    };
-  buildMacho = arch:
-    stdenv.mkDerivation rec {
-      name = "${utils.basename}-${version}-macos-${arch}";
-      version = utils.node2nixDev.version;
-      src = "${utils.node2nixDev}/lib/node_modules/${utils.node2nixDev.packageName}";
-      buildInputs = [
-        utils.pkg
-      ];
-      PKG_CACHE_PATH = utils.pkgCachePath;
-      PKG_IGNORE_TAG = 1;
-      # ensure that native modules are built from source
-      npm_config_build_from_source = "true";
-      buildPhase = ''
-        cp ${./package.json} package.json
-        pkg . \
-          --targets macos-${arch} \
-          --no-bytecode \
-          --public \
-          --public-packages "*" \
-          --output out
-      '';
-      installPhase = ''
-        cp out $out
-      '';
-      dontFixup = true;
-    };
-in
-  rec {
-    application = callPackage ./default.nix {};
-    docker = dockerTools.buildImage {
-      name = application.name;
-      contents = [ application ];
-      keepContentsDirlinks = true;
-      extraCommands = ''
-        mkdir -m 1777 tmp
-      '';
-      config = {
-        Cmd = [ "/bin/typescript-demo-lib" ];
-      };
-    };
-    package = {
-      linux = {
-        x64 = {
-          elf = buildElf "x64";
-        };
-      };
-      windows = {
-        x64 = {
-          exe = buildExe "x64";
-        };
-      };
-      macos = {
-        x64 = {
-          macho = buildMacho "x64";
-        };
-      };
-    };
-  }
diff --git a/shell.nix b/shell.nix
index ac76837..bc5596a 100644
--- a/shell.nix
+++ b/shell.nix
@@ -1,37 +1,25 @@
 { pkgs ? import ./pkgs.nix {} }:
 
 with pkgs;
-let
-  utils = callPackage ./utils.nix {};
-in
-  pkgs.mkShell {
-    nativeBuildInputs = [
-      nodejs
-      nodePackages.node2nix
-      utils.pkg
-    ];
-    PKG_CACHE_PATH = utils.pkgCachePath;
-    PKG_IGNORE_TAG = 1;
-    shellHook = ''
-      echo 'Entering Typescript-Demo-Lib'
-      set -o allexport
-      . ./.env
-      set +o allexport
-      set -v
+pkgs.mkShell {
+  nativeBuildInputs = [
+    nodejs
+    nodePackages.node2nix
+  ];
+  shellHook = ''
+    echo 'Entering js-errors'
+    set -o allexport
+    . ./.env
+    set +o allexport
+    set -v
 
-      export PATH="$(pwd)/dist/bin:$(npm bin):$PATH"
+    # Enables npm link to work
+    export npm_config_prefix=~/.npm
 
-      # pkg is installed in package.json
-      # this ensures that in nix-shell we are using the nix packaged versions
-      export PATH="${lib.makeBinPath
-        [
-          utils.pkg
-        ]
-      }:$PATH"
+    export PATH="$(pwd)/dist/bin:$(npm bin):$PATH"
+    npm install
+    mkdir --parents "$(pwd)/tmp"
 
-      npm install
-      mkdir --parents "$(pwd)/tmp"
-
-      set +v
-    '';
-  }
+    set +v
+  '';
+}
diff --git a/src/AbstractError.ts b/src/AbstractError.ts
new file mode 100644
index 0000000..715ecb1
--- /dev/null
+++ b/src/AbstractError.ts
@@ -0,0 +1,53 @@
+import type { POJO } from './types';
+import { performance } from 'perf_hooks';
+import { CustomError } from 'ts-custom-error';
+
+/**
+ * Abstract error
+ * Intended for further extension
+ */
+class AbstractError<T = void> extends CustomError {
+  /**
+   * Static description of exception
+   */
+  public static description: string = '';
+
+  /**
+   * Arbitrary data
+   */
+  public data: POJO;
+
+  /**
+   * Causation of the exception
+   * Can be used to know what caused this exception
+   */
+  public cause: T;
+
+  /**
+   * Timestamp when exception was constructed in milliseconds
+   * May contain microseconds in the fractional part
+   * Guaranteed to be weakly monotonic
+   */
+  public timestamp: Date;
+
+  public constructor(
+    message: string = '',
+    options: {
+      timestamp?: Date;
+      data?: POJO;
+      cause?: T;
+    } = {},
+  ) {
+    super(message);
+    this.timestamp =
+      options.timestamp ?? new Date(performance.timeOrigin + performance.now());
+    this.data = options.data ?? {};
+    this.cause = options.cause as T;
+  }
+
+  public get description(): string {
+    return this.constructor['description'];
+  }
+}
+
+export default AbstractError;
diff --git a/src/bin/typescript-demo-lib.ts b/src/bin/typescript-demo-lib.ts
deleted file mode 100755
index 644f6d8..0000000
--- a/src/bin/typescript-demo-lib.ts
+++ /dev/null
@@ -1,53 +0,0 @@
-#!/usr/bin/env node
-
-import * as os from 'os';
-import process from 'process';
-import { v4 as uuidv4 } from 'uuid';
-import Library from '../lib/Library';
-import NumPair from '../lib/NumPair';
-import testLevel from '../lib/test-level';
-import testUtpNative from '../lib/test-utp-native';
-import testWorkers from '../lib/workers/test-workers';
-import { testFdLock } from '../lib/test-fd-lock';
-import { version, test } from '../utils';
-
-async function main(argv = process.argv): Promise<number> {
-  // Print out command-line arguments
-  argv = argv.slice(2); // Removing prepended file paths.
-  process.stdout.write('[' + argv.slice(0, 2).toString() + ']\n');
-
-  // Create a new Library with the value someParam = 'new library'
-  // And print it out
-  const l = new Library('new library');
-  process.stdout.write(l.someParam + '\n');
-
-  // Generate and print a uuid (universally unique identifier)
-  process.stdout.write(uuidv4() + '\n');
-
-  // Add the first two command-line args and print the result
-  // default to using 0
-  const nums = new NumPair(parseInt(argv[0] ?? 0), parseInt(argv[1] ?? 0));
-  const sum = nums.num1 + nums.num2;
-  process.stdout.write(nums.num1 + ' + ' + nums.num2 + ' = ' + sum + '\n');
-
-  // Testing native modules
-  const dir = argv[2] ?? os.tmpdir();
-  await testLevel(dir);
-  await testWorkers();
-  await testUtpNative();
-
-  process.stdout.write(version + '\n');
-  process.stdout.write(test.toString() + '\n');
-
-  // Testing fd-lock
-  await testFdLock(dir);
-
-  process.exitCode = 0;
-  return process.exitCode;
-}
-
-if (require.main === module) {
-  main();
-}
-
-export default main;
diff --git a/src/index.ts b/src/index.ts
index 55ee82b..18ed401 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1 +1,2 @@
-export { default as Library } from './lib/Library';
+export { default as AbstractError } from './AbstractError';
+export * from './types';
diff --git a/src/lib/Library.ts b/src/lib/Library.ts
deleted file mode 100644
index 3b63855..0000000
--- a/src/lib/Library.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-class Library {
-  someParam: string;
-
-  constructor(someParam = 'Parameter') {
-    this.someParam = someParam;
-  }
-}
-
-export default Library;
diff --git a/src/lib/NumPair.ts b/src/lib/NumPair.ts
deleted file mode 100644
index 331a23d..0000000
--- a/src/lib/NumPair.ts
+++ /dev/null
@@ -1,11 +0,0 @@
-class NumPair {
-  num1: number;
-  num2: number;
-
-  constructor(firstNum = 0, secondNum = 0) {
-    this.num1 = firstNum;
-    this.num2 = secondNum;
-  }
-}
-
-export default NumPair;
diff --git a/src/lib/test-fd-lock.ts b/src/lib/test-fd-lock.ts
deleted file mode 100644
index 57fa8f0..0000000
--- a/src/lib/test-fd-lock.ts
+++ /dev/null
@@ -1,16 +0,0 @@
-import fs from 'fs';
-import path from 'path';
-import lock from 'fd-lock';
-
-async function testFdLock(dir: string) {
-  const fh = await fs.promises.open(
-    path.join(dir, 'lockfile'),
-    fs.constants.O_CREAT | fs.constants.O_RDWR,
-  );
-  lock(fh.fd);
-  process.stdout.write('Acquired lock!\n');
-  lock.unlock(fh.fd);
-  await fh.close();
-}
-
-export { testFdLock };
diff --git a/src/lib/test-level.ts b/src/lib/test-level.ts
deleted file mode 100644
index f7cd5eb..0000000
--- a/src/lib/test-level.ts
+++ /dev/null
@@ -1,16 +0,0 @@
-import path from 'path';
-import process from 'process';
-import level from 'level';
-
-// Level tests.
-async function testLevel(dir: string) {
-  process.stdout.write('lets test some levelDB\n');
-  const db = level(path.join(dir, 'levelDB'));
-  const key = 'hello';
-  const value = 'Level!';
-  await db.put(key, value);
-  process.stdout.write(key + ' ' + (await db.get(key)) + '\n');
-  process.stdout.write('\n');
-}
-
-export default testLevel;
diff --git a/src/lib/test-utp-native.ts b/src/lib/test-utp-native.ts
deleted file mode 100644
index 1be8cd1..0000000
--- a/src/lib/test-utp-native.ts
+++ /dev/null
@@ -1,28 +0,0 @@
-import utp from 'utp-native';
-import { sleep } from '../utils';
-
-async function testUtpNative() {
-  // Utp-native tests
-  process.stdout.write('Lets test utp-native.\n');
-  const server = utp.createServer((socket) => {
-    socket.pipe(socket);
-  });
-
-  server.listen(() => {
-    const socket = utp.connect(server.address().port);
-
-    socket.write('hello UTP!!\n');
-    socket.end();
-
-    socket.on('data', (data) => {
-      process.stdout.write('echo: ' + data + '\n');
-    });
-    socket.on('end', () => {
-      process.stdout.write('ended\n');
-      server.close();
-    });
-  });
-  await sleep(2000);
-}
-
-export default testUtpNative;
diff --git a/src/lib/workers/test-workers.ts b/src/lib/workers/test-workers.ts
deleted file mode 100644
index d15280f..0000000
--- a/src/lib/workers/test-workers.ts
+++ /dev/null
@@ -1,19 +0,0 @@
-import * as os from 'os';
-import process from 'process';
-import { Pool, spawn, Worker } from 'threads';
-
-async function testWorkers() {
-  process.stdout.write('Lets test workers.\n');
-  const coreCount = os.cpus().length;
-  const pool = Pool(() => spawn(new Worker('./worker')), coreCount);
-  for (let i = 0; i < coreCount; i++) {
-    pool.queue(async (hellower) => {
-      process.stdout.write((await hellower.helloWorld()) + '\n');
-    });
-  }
-  await pool.completed();
-  process.stdout.write('\n');
-  await pool.terminate();
-}
-
-export default testWorkers;
diff --git a/src/lib/workers/worker.ts b/src/lib/workers/worker.ts
deleted file mode 100644
index 28b6710..0000000
--- a/src/lib/workers/worker.ts
+++ /dev/null
@@ -1,7 +0,0 @@
-import { expose } from 'threads/worker';
-
-expose({
-  helloWorld() {
-    return 'Hello Worker!';
-  },
-});
diff --git a/src/test.json b/src/test.json
deleted file mode 100644
index f834b2a..0000000
--- a/src/test.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "test": true
-}
diff --git a/src/types.ts b/src/types.ts
new file mode 100644
index 0000000..7995e54
--- /dev/null
+++ b/src/types.ts
@@ -0,0 +1,6 @@
+/**
+ * Plain data dictionary
+ */
+type POJO = { [key: string]: any };
+
+export type { POJO };
diff --git a/src/utils.ts b/src/utils.ts
deleted file mode 100644
index 3e75f2e..0000000
--- a/src/utils.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-import { test } from './test.json';
-// @ts-ignore package.json is outside rootDir
-import { version } from '../package.json';
-
-async function sleep(ms: number) {
-  return await new Promise((r) => setTimeout(r, ms));
-}
-
-export { sleep, version, test };
diff --git a/tests/bin/typescript-demo-lib.test.ts b/tests/bin/typescript-demo-lib.test.ts
deleted file mode 100644
index 3395ecb..0000000
--- a/tests/bin/typescript-demo-lib.test.ts
+++ /dev/null
@@ -1,103 +0,0 @@
-import fs from 'fs';
-import os from 'os';
-import path from 'path';
-import { mockProcessStdout } from 'jest-mock-process';
-import main from '@/bin/typescript-demo-lib';
-
-const uuidRegex = new RegExp(
-  '[a-z0-9]{8}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{12}',
-);
-
-let dataDir: string;
-
-describe('main', () => {
-  beforeEach(async () => {
-    dataDir = await fs.promises.mkdtemp(path.join(os.tmpdir(), 'test-'));
-  });
-  afterEach(async () => {
-    await fs.promises.rmdir(dataDir, {
-      recursive: true,
-    });
-  });
-  test('main takes synthetic parameters', async () => {
-    // Jest can also "spy on" the console object
-    // and then you can test on stdout
-    const mockLog = mockProcessStdout();
-    expect(await main(['', '', '1', '2', dataDir])).toEqual(0);
-    mockLog.mockRestore();
-  });
-  test('no input', async () => {
-    const mockLog = mockProcessStdout();
-    await main([]);
-    const tmpMockLog = mockLog.mock.calls.join('');
-    expect(tmpMockLog).toContain('[]\n');
-    expect(tmpMockLog).toContain('new library\n');
-    expect(tmpMockLog).toMatch(uuidRegex);
-    expect(tmpMockLog).toContain('0 + 0 = 0\n');
-    mockLog.mockRestore();
-  });
-  test('adds 0 + 0', async () => {
-    const mockLog = mockProcessStdout();
-    await main(['', '', '0', '0', dataDir]);
-    const tmpMockLog = mockLog.mock.calls.join('');
-    expect(tmpMockLog).toContain('[0,0]\n');
-    expect(tmpMockLog).toContain('new library\n');
-    expect(tmpMockLog).toMatch(uuidRegex);
-    expect(tmpMockLog).toContain('0 + 0 = 0\n');
-    mockLog.mockRestore();
-  });
-  test('adds 0 + 1', async () => {
-    const mockLog = mockProcessStdout();
-    await main(['', '', '0', '1', dataDir]);
-    const tmpMockLog = mockLog.mock.calls.join('');
-    expect(tmpMockLog).toContain('[0,1]\n');
-    expect(tmpMockLog).toContain('new library\n');
-    expect(tmpMockLog).toMatch(uuidRegex);
-    expect(tmpMockLog).toContain('0 + 1 = 1\n');
-    mockLog.mockRestore();
-  });
-  test('adds 1 + 0', async () => {
-    const mockLog = mockProcessStdout();
-    await main(['', '', '1', '0', dataDir]);
-    const tmpMockLog = mockLog.mock.calls.join('');
-    expect(tmpMockLog).toContain('[1,0]\n');
-    expect(tmpMockLog).toContain('new library\n');
-    expect(tmpMockLog).toMatch(uuidRegex);
-    expect(tmpMockLog).toContain('1 + 0 = 1\n');
-    mockLog.mockRestore();
-  });
-  test('adds 7657 + 238947', async () => {
-    const mockLog = mockProcessStdout();
-    await main(['', '', '7657', '238947', dataDir]);
-    const tmpMockLog = mockLog.mock.calls.join('');
-    expect(tmpMockLog).toContain('[7657,238947]\n');
-    expect(tmpMockLog).toContain('new library\n');
-    expect(tmpMockLog).toMatch(uuidRegex);
-    expect(tmpMockLog).toContain('7657 + 238947 = 246604\n');
-    mockLog.mockRestore();
-  });
-  test('level should work.', async () => {
-    const mockLog = mockProcessStdout();
-    await main(['', '', '', '', dataDir]);
-    const tmpMockLog = mockLog.mock.calls.join('');
-    expect(tmpMockLog).toContain('lets test some levelDB');
-    expect(tmpMockLog).toContain('hello Level!');
-    mockLog.mockRestore();
-  });
-  test('Worker threads should work.', async () => {
-    const mockLog = mockProcessStdout();
-    await main(['', '', '', '', dataDir]);
-    const tmpMockLog = mockLog.mock.calls.join('');
-    expect(tmpMockLog).toContain('Lets test workers.');
-    expect(tmpMockLog).toContain('Hello Worker!');
-    mockLog.mockRestore();
-  });
-  test('utp-native should work.', async () => {
-    const mockLog = mockProcessStdout();
-    await main(['', '', '', '', dataDir]);
-    const tmpMockLog = mockLog.mock.calls.join('');
-    expect(tmpMockLog).toContain('Lets test utp-native.');
-    expect(tmpMockLog).toContain('hello UTP!!');
-    mockLog.mockRestore();
-  });
-});
diff --git a/tests/index.test.ts b/tests/index.test.ts
index 8c4f564..f9b5a0a 100644
--- a/tests/index.test.ts
+++ b/tests/index.test.ts
@@ -1,8 +1,58 @@
-import { Library } from '@';
+import { AbstractError } from '@';
 
 describe('index', () => {
-  test('some arbitrary test', () => {
-    const library = new Library('some param');
-    expect(library?.someParam).toEqual('some param');
+  test('properties', () => {
+    try {
+      throw new AbstractError();
+    } catch (e) {
+      expect(e).toBeInstanceOf(AbstractError);
+      expect(e.name).toBe(AbstractError.name);
+      expect(e.description).toBe('');
+      expect(e.data).toStrictEqual({});
+      expect(e.cause).toBeUndefined();
+      expect(e.timestamp).toBeInstanceOf(Date);
+      expect(e.stack).toBeDefined();
+      expect(Date.now() > e.timestamp).toBe(true);
+    }
+    try {
+      throw new AbstractError(undefined, {
+        data: {
+          foo: 'bar',
+        },
+        cause: new Error(),
+      });
+    } catch (e) {
+      expect(e.data).toStrictEqual({ foo: 'bar' });
+      expect(e.cause).toBeInstanceOf(Error);
+    }
+  });
+  test('extending', () => {
+    class ErrorProgram<T = void> extends AbstractError<T> {
+      public static description = 'static description';
+    }
+    try {
+      throw new ErrorProgram('dynamic message');
+    } catch (e) {
+      expect(e).toBeInstanceOf(ErrorProgram);
+      expect(e.message).toBe('dynamic message');
+      expect(e.description).toBe('static description');
+      expect(e.timestamp).toBeInstanceOf(Date);
+    }
+  });
+  test('causation chain', () => {
+    const eOriginal = new Error('cause');
+    try {
+      try {
+        throw eOriginal;
+      } catch (e) {
+        const e_ = new AbstractError(undefined, { cause: e as Error });
+        expect(e_.cause).toBeInstanceOf(Error);
+        expect(e_.cause).toBe(eOriginal);
+        expect(e_.cause.message).toBe('cause');
+        throw e_;
+      }
+    } catch (e) {
+      expect(e.cause).toBe(eOriginal);
+    }
   });
 });
diff --git a/tests/lib/Library.test.ts b/tests/lib/Library.test.ts
deleted file mode 100644
index 4bd4048..0000000
--- a/tests/lib/Library.test.ts
+++ /dev/null
@@ -1,30 +0,0 @@
-import Library from '@/lib/Library';
-import { testUtility } from './utils';
-
-declare global {
-  namespace NodeJS {
-    interface Global {
-      projectDir: string;
-      testDir: string;
-    }
-  }
-}
-
-describe('Library class', () => {
-  let library: Library | null;
-
-  beforeAll(() => {
-    library = new Library('some param');
-    // A noop test utility
-    // demonstrates using utils inside tests
-    testUtility();
-  });
-
-  afterAll(() => {
-    library = null;
-  });
-
-  test('some arbitrary test', () => {
-    expect(library?.someParam).toEqual('some param');
-  });
-});
diff --git a/tests/lib/utils.ts b/tests/lib/utils.ts
deleted file mode 100644
index d4116d7..0000000
--- a/tests/lib/utils.ts
+++ /dev/null
@@ -1,5 +0,0 @@
-function testUtility() {
-  return 1;
-}
-
-export { testUtility };
diff --git a/utils.nix b/utils.nix
deleted file mode 100644
index fe37645..0000000
--- a/utils.nix
+++ /dev/null
@@ -1,90 +0,0 @@
-{ runCommandNoCC
-, linkFarm
-, nix-gitignore
-, nodejs
-, nodePackages
-, pkgs
-, lib
-, fetchurl
-}:
-
-rec {
-  # this removes the org scoping
-  basename = builtins.baseNameOf node2nixDev.packageName;
-  src = nix-gitignore.gitignoreSource [".git"] ./.;
-  nodeVersion = builtins.elemAt (lib.versions.splitVersion nodejs.version) 0;
-  node2nixDrv = dev: runCommandNoCC "node2nix" {} ''
-    mkdir $out
-    ${nodePackages.node2nix}/bin/node2nix \
-      ${lib.optionalString dev "--development"} \
-      --input ${src}/package.json \
-      --lock ${src}/package-lock.json \
-      --node-env $out/node-env.nix \
-      --output $out/node-packages.nix \
-      --composition $out/default.nix \
-      --nodejs-${nodeVersion}
-  '';
-  # the shell attribute has the nodeDependencies, whereas the package does not
-  node2nixProd = (
-    (import (node2nixDrv false) { inherit pkgs nodejs; }).shell.override (attrs: {
-      buildInputs = attrs.buildInputs ++ [ nodePackages.node-gyp-build ];
-      dontNpmInstall = true;
-    })
-  ).nodeDependencies;
-  node2nixDev = (import (node2nixDrv true) { inherit pkgs nodejs; }).package.override (attrs: {
-    src = src;
-    buildInputs = attrs.buildInputs ++ [ nodePackages.node-gyp-build ];
-    dontNpmInstall = true;
-    postInstall = ''
-      # The dependencies were prepared in the install phase
-      # See `node2nix` generated `node-env.nix` for details.
-      npm run build
-
-      # This call does not actually install packages. The dependencies
-      # are present in `node_modules` already. It creates symlinks in
-      # $out/lib/node_modules/.bin according to `bin` section in `package.json`.
-      npm install
-    '';
-  });
-  pkgBuilds = {
-    "3.1" = {
-      "linux-x64" = fetchurl {
-        url = "https://github.com/vercel/pkg-fetch/releases/download/v3.1/node-v14.17.0-linux-x64";
-        sha256 = "11vk7vfxa1327mr71gys8fhglrpscjaxrpnbk1jbnj5llyzcx52l";
-      };
-      "win32-x64" = fetchurl {
-        url = "https://github.com/vercel/pkg-fetch/releases/download/v3.1/node-v14.17.0-win-x64";
-        sha256 = "08wf9ldy33sac1vmhd575zf2fhrbci3wz88a9nwdbccsxrkbgklc";
-      };
-      "macos-x64" = fetchurl {
-        url = "https://github.com/vercel/pkg-fetch/releases/download/v3.1/node-v14.17.0-macos-x64";
-        sha256 = "0lwa6s66wy7qmj4wbpa65hv996vxzznrscqgwrk3q2zzpsra24q7";
-      };
-    };
-  };
-  pkgCachePath =
-    let
-      pkgBuild = pkgBuilds."3.1";
-      fetchedName = n: builtins.replaceStrings ["node"] ["fetched"] n;
-    in
-      linkFarm "pkg-cache"
-        [
-          {
-            name = fetchedName pkgBuild.linux-x64.name;
-            path = pkgBuild.linux-x64;
-          }
-          {
-            name = fetchedName pkgBuild.win32-x64.name;
-            path = pkgBuild.win32-x64;
-          }
-          {
-            name = fetchedName pkgBuild.macos-x64.name;
-            path = pkgBuild.macos-x64;
-          }
-        ];
-  pkg = pkgs.nodePackages.pkg.override {
-    postFixup = ''
-      patch -p0 < ${./nix/leveldown.patch}
-    '';
-  };
-}