How to use the @ably/msgpack-js.encode function in @ably/msgpack-js

verboseOutput(util.inspect(encoded_message));
	verboseOutput('\n');

	/* JSON-encoded representation if not encrypted */
	var encoded_json = copy(encoded_message);
	if(isBuffer) {
		encoded_json.data = data.toString('base64');
		encoded_json.encoding = (encoding ? (encoding + '/') : '') + 'base64';
	}
	verboseOutput('Unencrypted JSON message format:');
	verboseOutput(JSON.stringify(encoded_json));
	verboseOutput('\n');

	/* unencrypted format msgpack */
	verboseOutput('Unencrypted msgpack message format:');
	hexdump(msgpack.encode(encoded_message));
	verboseOutput('\n');

	/* plaintext without padding */
	verboseOutput('Plaintext before encryption (without padding):');
	var plaintext = data;
	if(isString) {
		plaintext = new Buffer(plaintext);
		encoding = (encoding ? (encoding + '/') : '') + 'utf-8';
	}
	hexdump(plaintext);
	verboseOutput('\n');

	/* plaintext including padding */
	verboseOutput('Plaintext before encryption (including padding):');
	var paddedPlaintext = padPlaintext(plaintext);
	hexdump(paddedPlaintext);

};
	verboseOutput('Encrypted message format:');
	verboseOutput(util.inspect(encrypted_message));
	verboseOutput('\n');

	/* encrypted format (JSON) */
	var encrypted_json = copy(encrypted_message);
	encrypted_json.data = encrypted_message.data.toString('base64');
	encrypted_json.encoding = encrypted_message.encoding + '/base64'
	verboseOutput('Encrypted JSON message format:');
	verboseOutput(JSON.stringify(encrypted_json));
	verboseOutput('\n');

	/* encrypted format (msgpack)*/
	verboseOutput('Encrypted msgpack message format:');
	hexdump(msgpack.encode(encrypted_message));
	verboseOutput('\n');

	return {
		encoded: encoded_json,
		encrypted: encrypted_json
	};
}