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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _define_absl_flags(self, absl_flags):
 """Defines flags from absl_flags."""

    key_flags = set(absl_flags.get_key_flags_for_module(sys.argv[0]))
    for name in absl_flags:
      if name in _BUILT_IN_FLAGS:
        # Do not inherit built-in flags.
        continue
      flag_instance = absl_flags[name]
      # Each flags with short_name appears in FLAGS twice, so only define
      # when the dictionary key is equal to the regular name.
      if name == flag_instance.name:
        # Suppress the flag in the help short message if it's not a main
        # module's key flag.
        suppress = flag_instance not in key_flags
        self._define_absl_flag(flag_instance, suppress)