{"ast_node_type":"variable","tokens":[{"end":72,"kind":"keyword","start":0,"text":"let"}]}
                        let normalizes_to = normalizes_to.skip_binder();
                    if let Some(normalizes_to) = goal.predicate.as_normalizes_to() {
                        let rhs_arg: I::GenericArg = normalizes_to.term.into();