docs: protected boolean activityAlreadyContainsJobDeclarationEventType(List<EventSubscriptionJobDeclaration> jobDeclarationsForActivity,
                                                                     EventSubscriptionJobDeclaration jobDeclaration){
      for(EventSubscriptionJobDeclaration declaration: jobDeclarationsForActivity){
        if(declaration.getEventType().equals(jobDeclaration.getEventType())){
          return true;
        }
      }
      return false;
    }