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Defines an alias flag for an existing one.

    name, original_name, flag_values=_flagvalues.FLAGS, module_name=None


  • name: str, the flag name.
  • original_name: str, the original flag name.
  • flag_values: FlagValues, the FlagValues instance with which the flag will be registered. This should almost never need to be overridden.
  • module_name: A string, the name of the module that defines this flag.


  • flags.FlagError: UnrecognizedFlagError: if the referenced flag doesn't exist. DuplicateFlagError: if the alias name has been used by some existing flag.