code: def setUp(self):
      super().setUp()
      self._saved_flags = flagsaver.save_flag_values()
  
imports: import io
  from unittest import mock
  from absl import flags
  from absl.testing import absltest
  from absl.testing import flagsaver
  from absl.testing import parameterized
  from deepvariant.opensource_only.scripts import run_deeptrio
label_desc: Use image node_id 1 for calling the RunDeeptrioTest obj's underlying member method code with example usage: obj.setUp() without return types