question: deep check whether a given abstractevent is contained within this dmc 's event set concode_field_sep ProcessInstance processInstance concode_elem_sep String id_string concode_elem_sep long id_counter concode_elem_sep long id_nr concode_elem_sep Date endDate concode_elem_sep ArrayList<AbstractEvent> events concode_elem_sep Date startDate concode_elem_sep Footprint footprint concode_field_sep ProcessInstance getProcessInstance concode_elem_sep Date getRightBoundaryTimestamp concode_elem_sep int compareTo concode_elem_sep void addEvent concode_elem_sep ArrayList<AbstractEvent> getEvents concode_elem_sep long nextId concode_elem_sep Iterator<AbstractEvent> iterator concode_elem_sep Footprint footprint concode_elem_sep long getPosition concode_elem_sep int size concode_elem_sep boolean isSimilarTo concode_elem_sep boolean equals concode_elem_sep void makeFootprintCanonical concode_elem_sep long getIdNumber concode_elem_sep boolean conflicts concode_elem_sep String toString concode_elem_sep boolean isAtomic concode_elem_sep String getIdString concode_elem_sep void resetIdCounter concode_elem_sep Date getLeftBoundaryTimestamp concode_elem_sep boolean isConsistent
target: boolean function ( AbstractEvent arg0 ) { return events . contains ( arg0 ) ; }