def _GetTempOutputFileHandles(self, value_type):
    try:
      return self.temp_output_trackers[value_type], False
    except KeyError:
      return self._CreateOutputFileHandles(value_type), True
Initializes output AFF4Image for a given value type.
dataset/ETHPy150Open google/grr/grr/lib/output_plugins/bigquery_plugin.py/BigQueryOutputPlugin._GetTempOutputFileHandles