add loads, dumps to MessageType and Message

src/lib/protobuf/protobuf.py

@@ -185,6 +185,15 @@ class MessageType:
                             raise ValueError('The field %s (\'%s\') is required but missing.' % (tag, name))
                 return message
 
+    def dumps(self, value):
+        fp = BytesIO()
+        self.dump(fp, value)
+        return fp.getvalue()
+
+    def loads(self, buf):
+        fp = BytesIO(buf)
+        return self.load(fp)
+
 class Message:
     # Represents a message instance.
 
@@ -196,6 +205,10 @@ class Message:
         # Dumps the message into a write-like object.
         return self.message_type.dump(fp, self)
 
+    def dumps(self):
+        # Dumps the message into bytes
+        return self.message_type.dumps(self)
+
 # Embedded message. ------------------------------------------------------------
 
 class EmbeddedMessage: