def _fork(self, tables, keys, key_name=None, key_type=None):
        if key_name is None:
            key_name = self._key_name

        if key_type is None:
            key_type = self._key_type

        return TableSet(tables, keys, key_name, key_type, _is_fork=True)
Reserve a set of values for this execution.
dataset/ETHPy150Open wireservice/agate/agate/tableset/__init__.py/TableSet._fork--crossover with--dataset/ETHPy150Open mkorpela/pabot/pabot/PabotLib.py/PabotLib.acquire_value_set