How to use the x2paddle.op_mapper.onnx_directly_map.default_op_mapping_field_values.values function in x2paddle

def directly_map(self, node, name='', *args, **kwargs):
        inputs = node.layer.input
        outputs = node.layer.output
        op_type = node.layer_type
        attrs = node.attr_map
        info = default_op_mapping[op_type]
        info.extend(list(default_op_mapping_field_values.values())[len(info):])
        (
            fluid_op,
            fluid_input_args,
            fluid_output_args,
            attr_mapping,
            default_attrs,
            input_perm,
            output_perm,
            fill_name_field,
        ) = info

        if fluid_op in default_ioa_constraint:
            for predicate, message in default_ioa_constraint[fluid_op]:
                assert predicate(inputs, outputs, attrs), message

        mapped_attrs = {