Nodestream/webUnderlyingByteSourceinterface UnderlyingByteSourceProperties #optional#autoAllocateChunkSize: numberoptional#cancel: ReadableStreamErrorCallbackoptional#pull: ReadableByteStreamControllerCallbackoptional#start: ReadableByteStreamControllerCallback#type: "bytes"
interface UnderlyingByteSourceProperties #optional#autoAllocateChunkSize: numberoptional#cancel: ReadableStreamErrorCallbackoptional#pull: ReadableByteStreamControllerCallbackoptional#start: ReadableByteStreamControllerCallback#type: "bytes"