{"ast_node_type":"other","tokens":[{"end":123,"kind":"keyword","start":0,"text":"debug_assert!(self.layout.is_sized());"}]}
        debug_assert!(self.layout.is_sized()); // unsized ImmTy can only exist temporarily and should never reach this here
    fn meta(&self) -> MemPlaceMeta<Prov> {
        MemPlaceMeta::None