{"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"ty::Binder::dummy(ty::PredicateKind::Subtype(ty::SubtypePredicate"}]}
                            ty::Binder::dummy(ty::PredicateKind::Subtype(ty::SubtypePredicate {
                            self.param_env,
                                a_is_expected: true,