{"ast_node_type":"variable","tokens":[{"end":59,"kind":"keyword","start":0,"text":"let"}]}
        let uv = match self.monomorphize(constant.const_) {
    ) -> Result<Result<ty::ValTree<'tcx>, Ty<'tcx>>, ErrorHandled> {
            mir::Const::Unevaluated(uv, _) => uv.shrink(),