import { io } from "https://deno.land/x/powar@1.0.4/deps.ts";
const { Buffer } = io;
Reads the next p.length bytes from the buffer or until the buffer is
drained. Resolves to the number of bytes read. If the buffer has no
data to return, resolves to EOF (null).
NOTE: This methods reads bytes synchronously; it's provided for
compatibility with Reader interfaces.