function Deno.writeAllDeprecatedDeprecatedThis 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. 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>