{"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"self.tcx.predicates_of(obligation.impl_or_alias_def_id);"}]}
            self.tcx.predicates_of(obligation.impl_or_alias_def_id);
        let impl_predicates: ty::GenericPredicates<'tcx> =
        let Some(impl_predicate_index) = obligation.impl_def_predicate_index else {