import { BufReader } from "https://deno.land/std@0.181.0/io/buf_reader.ts";
return new BufReader unless r is BufReader
The Standard Library has been moved to JSR. See the blog post for details.
import { BufReader } from "https://deno.land/std@0.181.0/io/buf_reader.ts";
return new BufReader unless r is BufReader