function Deno.iterSyncDeprecatedDeprecatedUse ReadableStream instead. Deno.iterSync will be removed in the future. DeprecatedUse ReadableStream instead. Deno.iterSync will be removed in the future. iterSync(r: ReaderSync, options?: { bufSize?: number; }): IterableIterator<Uint8Array>Turns a ReaderSync, r, into an iterator. Turns a ReaderSync, r, into an iterator. Parametersr: ReaderSyncoptionaloptions: { bufSize?: number; }ReturnsIterableIterator<Uint8Array>