Given an extension or media type, return a full Content-Type or Content-Disposition header value.

Converts given base64url encoded data back to original

Encodes a given ArrayBuffer or string into a base64url representation

Take a set of command line arguments, optionally with a set of options, and return an object representing the flags found in the passed arguments.

Read Reader r until EOF (null) and resolve to the content as Uint8Array`.