do not change viisbility of method inside AWSLambdaRuntimeCore

Author: sebsto

Examples/Testing/Tests/HandlerTests.swift

@@ -18,6 +18,7 @@ import Logging
 import Testing
 
 @testable import APIGatewayLambda  // to access the business code
+@testable import AWSLambdaRuntimeCore  // to access the LambdaContext
 
 #if canImport(FoundationEssentials)
 import FoundationEssentials

Sources/AWSLambdaRuntimeCore/LambdaContext.swift

@@ -123,7 +123,7 @@ public struct LambdaContext: CustomDebugStringConvertible, Sendable {
     /// This interface is not part of the public API and must not be used by adopters.
     /// It is declared public to allow users to unit test their handler.
     /// This API is not part of semver versioning.
-    public static func __forTestsOnly(
+    package static func __forTestsOnly(
         requestID: String,
         traceID: String,
         invokedFunctionARN: String,