Add stuff for messages.

Messaging/messages.py

@@ -0,0 +1,34 @@
+import umsgpack
+
+
+class Message():
+    def __init__(self, message=None):
+        self.message = message
+
+    def serialise(self):
+        raise NotImplementedError
+
+    def deserialise(self, message):
+        raise NotImplementedError
+
+
+class PackMessage(Message):
+
+    def serialise(self):
+        return umsgpack.packb(self.message)
+
+    def deserialise(self, message):
+        return PackMessage(umsgpack.unpackb(self.message))
+
+
+class ProtoMessage(Message):
+
+    def __init__(self, proto_type, message=None):
+        Message(message)
+        self._type = proto_type
+
+    def serialise(self):
+        return self.message.SerializeToString()
+
+    def deserialise(self, message):
+        return ProtoMessage(self._type, self._type.ParseFromString(message))