docs: def _set_flags(self, **flags):
          '''
          Set the flags of this argument.
  
          Example: ``int_param._set_flags(a=1, b=2, c=4, d=8)``
          '''
          self._flags = enum.IntEnum('_flags', flags)
          self.__dict__.update(self._flags.__members__)
          self._patch_flag_doc()