{"ast_node_type":"other","tokens":[{"end":89,"kind":"keyword","start":0,"text":"impl<I:"}]}
impl<I: Idx + 'static, T: ParameterizedOverTcx> ParameterizedOverTcx for IndexVec<I, T> {
    type Value<'tcx> = IndexVec<I, T::Value<'tcx>>;