{"ast_node_type":"other","tokens":[{"end":59,"kind":"keyword","start":0,"text":"ty::ConstKind::Bound(_,"}]}
            ty::ConstKind::Bound(_, _) => unimplemented!(),
            ty::ConstKind::Infer(_) => unreachable!(),
            ty::ConstKind::Placeholder(_) => unimplemented!(),