import { io } from "https://deno.land/x/powar@1.0.1/deps.ts";
const { BufWriter } = io;
return new BufWriter unless writer is BufWriter
import { io } from "https://deno.land/x/powar@1.0.1/deps.ts";
const { BufWriter } = io;
return new BufWriter unless writer is BufWriter