74         let instance = Self::get_instance();  in start_session()  localVariable
75         instance.response_waiters.insert(session_id, Waiter::new());  in start_session()
76         instance.empty_waiters.insert(session_id, Waiter::new());  in start_session()
81         let instance = Self::get_instance();  in wait_response()  localVariable
82         let waiter = instance.response_waiters.get(&session_id);  in wait_response()
90         let instance = Self::get_instance();  in wakeup_response_wait()  localVariable
91         let waiter = instance.response_waiters.get(&session_id);  in wakeup_response_wait()
99         let instance = Self::get_instance();  in wait_empty()  localVariable
100         let waiter = instance.empty_waiters.get(&session_id);  in wait_empty()
108         let instance = Self::get_instance();  in wakeup_empty_wait()  localVariable
109         let waiter = instance.empty_waiters.get(&session_id);  in wakeup_empty_wait()
177         let instance = Self::get_instance();  in get_package()  localVariable
178         let mtx = instance.lock().await;  in get_package()
192         let instance = Self::get_instance();  in put_package()  localVariable
193         let mut mtx = instance.lock().await;  in put_package()
209         let instance = Self::get_instance();  in update_package()  localVariable
210         let mtx = instance.lock().await;  in update_package()
225         let instance = Self::get_instance();  in get_stop_flag()  localVariable
226         let mtx = instance.lock().await;  in get_stop_flag()
238         let instance = Self::get_instance();  in set_stop_flag()  localVariable
239         let mut mtx = instance.lock().await;  in set_stop_flag()
245         let instance = Self::get_instance();  in remove_package()  localVariable
246         let mtx = instance.lock().await;  in remove_package()
259         let instance = Self::get_instance();  in remove_session()  localVariable
260         let mut mtx = instance.lock().await;  in remove_session()
382     let instance = QueueManager::get_instance();  in start_session()  localVariable
383     let mut mtx = instance.lock().await;  in start_session()
400     let instance = QueueManager::get_instance();  in stop_session()  localVariable
401     let mut mtx = instance.lock().await;  in stop_session()
410     let instance = QueueManager::get_instance();  in stop_other_session()  localVariable
411     let mtx = instance.lock().await;  in stop_other_session()