def METHOD_NAME(self):
    # op-wise
    conf = {
        "usr_cfg": {
            "quantization": {
                "op_wise": self.op_wise_user_cfg_for_fallback,
            }
        }
    }
    conf = DotDict(conf)
    # test fallback
    tuning_space2 = TuningSpace(deepcopy(self.capability), deepcopy(conf))
    logger.debug(tuning_space2.root_item.get_details())
    op_name1_only_fp32 = True
    for quant_mode in ["static", "dynamic"]:
        for item in tuning_space2.query_items_by_quant_mode(quant_mode):
            if item.name[0] == "op_name1":
                op_name1_only_fp32 = False
    self.assertTrue(op_name1_only_fp32)