def _add_partial_key_entity_pb(self):
        new_mutation = self.mutations.add()
        return new_mutation.insert
Gets the first key of all available encodings where the corresponding
dataset/ETHPy150Open GoogleCloudPlatform/gcloud-python/gcloud/datastore/batch.py/Batch._add_partial_key_entity_pb--crossover with--dataset/ETHPy150Open datalyze-solutions/pandas-qt/pandasqt/views/CSVDialogs.py/_calculateEncodingKey