import { Deno } from "https://deno.land/x/deno@v1.41.0/cli/tsc/dts/lib.deno.ns.d.ts";
const { Buffer } = Deno;
Discards all but the first n
unread bytes from the buffer but
continues to use the same allocated storage. It throws if n
is
negative or greater than the length of the buffer.