# Send a complex `Serializable` object
	fun send(data: nullable Serializable, dest: Rank, tag: Tag, comm: Comm)
	do
		# Serialize data
		var stream = new StringWriter
		var serializer = new JsonSerializer(stream)
		serializer.serialize(data)

		# Send message
		var str = stream.to_s
		send_from(str, 0, str.length, dest, tag, comm)
	end