PileUpEventInfo_p1 Node1 PileUpEventInfo_p1 + m_subEvents + PileUpEventInfo_p1() + ~PileUpEventInfo_p1() Node2 EventInfo_p1 + m_event_ID + m_event_type + m_trigger_info + EventInfo_p1() + ~EventInfo_p1() + EventInfo_p1() + operator=() + EventInfo_p1() + operator=() Node2->Node1