{"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"err.arg(\"vtable_dyn_type\","}]}
                err.arg("vtable_dyn_type", vtable_dyn_type.to_string());
            InvalidMetaWrongTrait { vtable_dyn_type, expected_dyn_type } => {
                err.arg("expected_dyn_type", expected_dyn_type.to_string());