{"ast_node_type":"other","tokens":[{"end":89,"kind":"keyword","start":0,"text":"|self_ty:"}]}
                |self_ty: Ty<'tcx>, parent_pred: ty::Predicate<'tcx>, obligation: &str| {
            let mut collect_type_param_suggestions =
                    // We don't care about regions here, so it's fine to skip the binder here.