{"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"[crate::tagged_ptr::TaggedRef<'a,"}]}
    [crate::tagged_ptr::TaggedRef<'a, P, T> where 'a, P: Sync, T: Send + crate::tagged_ptr::Tag]
    [crate::sync::RwLock<T> where T: DynSend]
    [rustc_arena::TypedArena<T> where T: DynSend]