interface UnderlyingByteSourceimport { type UnderlyingByteSource } from "https://deno.land/x/evt@v2.4.3/lib/types/lib.dom.ts"; PropertiesoptionalautoAllocateChunkSize: numberoptionalcancel: ReadableStreamErrorCallbackoptionalpull: ReadableByteStreamControllerCallbackoptionalstart: ReadableByteStreamControllerCallbacktype: "bytes"