def get_message_attribute(self, server, attribute):
        return int(self.lookup_server(server, [attribute])[attribute][0], 10)
Retrieve attribute value from given message database (server).
dataset/ETHPy150Open byt3bl33d3r/pth-toolkit/lib/python2.7/site-packages/openchange/mailbox.py/OpenChangeDB.get_message_attribute