code: def test_cardinality(self):
      flag = flag_def.SingleValueFlagDef(
          name="value", parse_type=str, required=True
      )
  
      # Parser should not accept flag without no values.
      with self.assertRaisesRegex(
          argument_parser.ParserError, "expected 1 argument"
      ):
          _new_parser(flag).parse_args(["--value"])
  
      # Parser should not accept flag with more-than-one value.
      with self.assertRaisesRegex(
          argument_parser.ParserError,
          "unrecognized arguments: forty-two",
      ):
          _new_parser(flag).parse_args(
              ["--value", "forty-one", "forty-two"]
          )
  
      # Parser should not accept a command-line with the flag specified
      # more-than-once.
      with self.assertRaisesRegex(
          argument_parser.ParserError,
          "Cannot set --value more than once",
      ):
          _new_parser(flag).parse_args(
              ["--value", "forty-one", "--value", "forty-two"]
          )
  
      results = _new_parser(flag).parse_args(["--value", "forty-one"])
      self.assertEqual("forty-one", results.value)
  
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 SingleValueFlagDefTest obj's underlying member method code with example usage: obj.test_cardinality() without return types