function Deno.writeAllDeprecatedDeprecatedUse writeAll instead. Deno.writeAll will be removed in v2.0.0. DeprecatedUse writeAll instead. Deno.writeAll will be removed in v2.0.0. writeAll(w: Writer, arr: Uint8Array): Promise<void>Write all the content of the array buffer (arr) to the writer (w). Write all the content of the array buffer (arr) to the writer (w). Parametersw: Writerarr: Uint8ArrayReturnsPromise<void>