import { io } from "https://deno.land/x/powar@1.0.0/deps.ts";
const { BufReader } = io;
return new BufReader unless r is BufReader
import { io } from "https://deno.land/x/powar@1.0.0/deps.ts";
const { BufReader } = io;
return new BufReader unless r is BufReader