{"ast_node_type":"other","tokens":[{"end":89,"kind":"keyword","start":0,"text":"[parking_lot::lock_api::RwLock<R,"}]}
    [parking_lot::lock_api::RwLock<R, T> where R: DynSync, T: ?Sized + DynSend + DynSync]
    [parking_lot::lock_api::Mutex<R, T> where R: DynSync, T: ?Sized + DynSend]
    [hashbrown::HashTable<T> where T: DynSync]