code: def test_parsing(self):
      flag = flag_def.EnumFlagDef(
          name="color",
          required=False,
          enum_type=ColorsEnum,
          default_value=ColorsEnum.RED,
      )
  
      # "teal" is not one of the enum values.
      with self.assertRaisesRegex(
          argument_parser.ParserError, "invalid choice: 'teal'"
      ):
          _new_parser(flag).parse_args(["--color=teal"])
  
      results = _new_parser(flag).parse_args(["--color=red"])
      self.assertEqual(ColorsEnum.RED, results.color)
      results = _new_parser(flag).parse_args(["--color=green"])
      self.assertEqual(ColorsEnum.GREEN, results.color)
      results = _new_parser(flag).parse_args(["--color=blue"])
      self.assertEqual(ColorsEnum.BLUE, results.color)
  
imports: from __future__ import annotations
  import argparse
  import enum
  import math
  from absl.testing import absltest
  from google.generativeai.notebook import argument_parser
  from google.generativeai.notebook import flag_def
label_desc: Use image node_id 2 for calling the EnumFlagDefTest obj's underlying member method code with example usage: obj.test_parsing() without return types