function Deno.iterDeprecatedDeprecatedThis will be removed in Deno 2.0. See the Deno 1.x to 2.x Migration Guide for migration instructions. DeprecatedThis will be removed in Deno 2.0. See the Deno 1.x to 2.x Migration Guide for migration instructions. iter(r: Reader, options?: { bufSize?: number; }): AsyncIterableIterator<Uint8Array>Turns a Reader, r, into an async iterator. Turns a Reader, r, into an async iterator. Parametersr: Readeroptionaloptions: { bufSize?: number; }ReturnsAsyncIterableIterator<Uint8Array>