pub fn push_rollback(&mut self, elem: T, timestamp: Timestamp) {
        let rollback_event =
            ApplicationDataHistoryEvent::RollbacksEvent(VectorHistoryEvent::Push(elem));
        let event = FrameManagerHistoryRecord::InnerOperation(rollback_event);

        self.apply_historic_record(event, timestamp);
    }
Push an element to the rollback queue
core/lib/multivm/src/versions/vm_m5/history_recorder.rs