interface MessageChannelimport { type MessageChannel } from "https://deno.land/x/windmill@v1.361.1/node_modules/evt/lib/types/lib.dom.d.ts"; This Channel Messaging API interface allows us to create a new message channel and send data through it via its two MessagePort properties. Propertiesreadonlyport1: MessagePortReturns the first MessagePort object. readonlyport2: MessagePortReturns the second MessagePort object.