{"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"assert_eq!(tuplized_inputs.len(),"}]}
                assert_eq!(tuplized_inputs.len(), 1, "multiple closure inputs");
                    inputs_and_output.skip_binder().split_last().unwrap();
                let &ty::Tuple(inputs) = tuplized_inputs[0].kind() else {