def partial(self, message_num, message_part, start, length):
        name = 'PARTIAL'
        typ, dat = self._simple_command(name, message_num, message_part, start, length)
        return self._untagged_response(typ, dat, 'FETCH')
Internal helper to turn an entity into an EntityProto protobuf.
dataset/ETHPy150Open azoft-dev-team/imagrium/env/Lib/imaplib.py/IMAP4.partial--crossover with--dataset/ETHPy150Open GoogleCloudPlatform/datastore-ndb-python/ndb/model.py/Model._to_pb