{"ast_node_type":"other","tokens":[{"end":102,"kind":"keyword","start":0,"text":"formal_and_expected_inputs.get(mismatch_idx.to_expected_idx()).map(|tys|"}]}
                formal_and_expected_inputs.get(mismatch_idx.to_expected_idx()).map(|tys| tys.1.kind())
            if let Some(ty::Tuple(tys)) =
                // If the tuple is unit, we're not actually wrapping any arguments.