docs: def right_model_factory(*, validator=validators.is_right_model,
                          ld_type='Right', **kwargs):
      """Generate a Right model.
  
      Expects ``data``, ``validator``, ``model_cls``, ``ld_type``, and
      ``ld_context`` as keyword arguments.
      """
      return _model_factory(validator=validator, ld_type=ld_type, **kwargs)