def get_multi(self, keys, missing=None, deferred=None):
        if not keys:
            return []

        ids = set(key.project for key in keys)
        for current_id in ids:
            if current_id != self.project:
                raise ValueError('Keys do not match project')

        transaction = self.current_transaction

        entity_pbs = _extended_lookup(
            connection=self.connection,
            project=self.project,
            key_pbs=[k.to_protobuf() for k in keys],
            missing=missing,
            deferred=deferred,
            transaction_id=transaction and transaction.id,
        )

        if missing is not None:
            missing[:] = [
                helpers.entity_from_protobuf(missed_pb)
                for missed_pb in missing]

        if deferred is not None:
            deferred[:] = [
                helpers.key_from_protobuf(deferred_pb)
                for deferred_pb in deferred]

        return [helpers.entity_from_protobuf(entity_pb)
                for entity_pb in entity_pbs]
Retrieve entities, along with their attributes.
dataset/ETHPy150Open GoogleCloudPlatform/gcloud-python/gcloud/datastore/client.py/Client.get_multi