public function whenCommitteeInstantiated(CommitteeInstantiated $event)
 {
     $committee = new CommitteesList($event->committeeId(), $event->name(), $event->goal());
     $this->committees->save($committee);
 }
 protected function applyCommitteeInstantiated(CommitteeInstantiated $event)
 {
     $this->id = $event->committeeId();
     $this->name = $event->name();
     $this->goal = $event->goal();
 }