Returns: Generator object returning 4-tuples of: test (fn): Parametrized test function; must support a device arg and args for any params test_name (str): Parametrized suffix for the test (e.g. opname_int64); will be appended to the base name of the test param_kwargs (dict): Param kwargs to pass to the test (e.g. {'op': 'add', 'dtype': torch.int64}) decorator_fn (callable): Callable[[Dict], List] for list of decorators to apply given param_kwargs N)