code: def setUp(self):
      self.original_flags = flags.FlagValues()
      self.wrapped_flags = flags._FlagValuesWrapper(self.original_flags)
      flags.DEFINE_string(
          "test", "default", "test flag", flag_values=self.wrapped_flags
      )
  
file_path: tensorflow-upstream/tensorflow/python/platform/flags_test.py
imports: import sys
  import unittest
  from absl import flags
  from tensorflow.python.platform import flags
  from tensorflow.python.platform import test
label_desc: Use image node_id 1 for calling the FlagsTest obj's underlying member method code with example usage: obj.setUp() without return types