import { BufWriterSync } from "https://deno.land/x/proc@0.21.8/legacy/deps.ts";
return new BufWriterSync unless writer is BufWriterSync
Parameters
writer: WriterSync
import { BufWriterSync } from "https://deno.land/x/proc@0.21.8/legacy/deps.ts";
return new BufWriterSync unless writer is BufWriterSync