{"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"sema.type_of_expr(&expr.expr()?)?.original.as_callable(sema.db).zip(expr.arg_list())"}]}
            sema.type_of_expr(&expr.expr()?)?.original.as_callable(sema.db).zip(expr.arg_list())
            let expr = descended.as_ref().unwrap_or(expr);
        }