# Serialize `self` to MessagePack bytes
	#
	# Set `plain = true` to generate standard MessagePack, without deserialization metadata.
	# Use this option if the generated MessagePack will be read by non-Nit programs.
	# Use the default, `plain = false`, if the MessagePack bytes are to be deserialized by a Nit program.
	fun serialize_msgpack(plain: nullable Bool): Bytes
	do
		var stream = new BytesWriter
		stream.serialize_msgpack(self, plain)
		stream.close
		return stream.bytes
	end