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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def allocate_ids(self, project_id, keys):
 """Perform an ``allocateIds`` request. :type project_id: str :param project_id: The project to connect to. This is usually your project name in the cloud console. :type keys: List[.entity_pb2.Key] :param keys: The keys for which the backend should allocate IDs. :rtype: :class:`.datastore_pb2.AllocateIdsResponse` :returns: The returned protobuf response object. """

        request_pb = _datastore_pb2.AllocateIdsRequest(keys=keys)
        return _rpc(
            self.client._http,
            project_id,
            "allocateIds",
            self.client._base_url,
            request_pb,
            _datastore_pb2.AllocateIdsResponse,
        )