question: retrieves the current subscription that is being represented by this serialsubscription . concode_field_sep AtomicReferenceFieldUpdater<SerialSubscription,State> STATE_UPDATER concode_elem_sep Subscription subscription concode_elem_sep boolean isUnsubscribed concode_elem_sep State state concode_field_sep State set concode_elem_sep void set concode_elem_sep State unsubscribe concode_elem_sep void unsubscribe concode_elem_sep boolean isUnsubscribed
target: Subscription function ( ) { return state . subscription ; }