question: create a predicate that checks the group id of a flow entry is the same as the specified group id . concode_field_sep ImmutableSet<FlowEntry> current concode_elem_sep InternalFlowRuleListener listener concode_elem_sep ImmutableSet<FlowEntry> previous concode_elem_sep Logger log concode_elem_sep StatisticStore statisticStore concode_elem_sep FlowRuleService flowRuleService concode_field_sep Set<FlowEntry> getCurrentStatistic concode_elem_sep Statistics getStatistics concode_elem_sep ImmutableSet<FlowEntry> previous concode_elem_sep Link max concode_elem_sep Load loadInternal concode_elem_sep boolean isValid concode_elem_sep void deactivate concode_elem_sep long aggregate concode_elem_sep Predicate<FlowEntry> hasApplicationId concode_elem_sep Set<FlowEntry> getPreviousStatistic concode_elem_sep ImmutableSet<FlowEntry> current concode_elem_sep Link min concode_elem_sep Load load concode_elem_sep Load load concode_elem_sep Load load concode_elem_sep FlowRule highestHitter concode_elem_sep int hashCode concode_elem_sep boolean equals concode_elem_sep void activate concode_elem_sep String toString concode_elem_sep void event
target: Predicate < FlowEntry > function ( Optional < GroupId > arg0 ) { return flowEntry -> { if ( ! arg0 . isPresent ( ) ) { return false ; } return flowEntry . arg0 ( ) . equals ( arg0 . get ( ) ) ; } ; }