ping.plantuml

@startuml
skinparam handwritten true
!includeurl https://raw.githubusercontent.com/inthepocket/plantuml-styles/master/styles.plantuml!0

actor user
actor governance

picasso --\ karura : request open half channel
karura --\ picasso : accept open half channel
karura --\ picasso : accept open half channel
picasso --\ karura : request open half channel

governance -> picasso : register sufficient Karura KUSD asset
picasso -> picasso : register incoming `(Parent(Kusama), Parachain(Karura), Key(KUSD))` asset
...
user -> karura : Swap KSM to KUSD on DEX
user -> karura : Send KUSD to Picasso
karura -> karura : prepare message to be sent with `(Parent(Kusama), Parachain(Karura), Key(KUSD))`
karura --\ picasso : transfer asset
picasso -> picasso : map `(Parent(Kusama), Parachain(Karura), Key(KUSD))` to KUSD
picasso -> picasso : deposit KSD
@enduml