{"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"impl<'tcx,"}]}
    impl<'tcx, T: Copy> ArenaAllocatable<'tcx, rustc_arena::IsCopy> for T {
    // Any type that impls `Copy` can be arena-allocated in the `DroplessArena`.
        #[inline]