import { Buffer } from "https://deno.land/x/gauntlet@v0.0.9/imports/buffer.ts";
Returns true if {encoding} is a valid encoding argument. Valid string encodings in Node 0.12: 'ascii'|'utf8'|'utf16le'|'ucs2'(alias of 'utf16le')|'base64'|'binary'(deprecated)|'hex'