code: public static SagaType continueSaga(final Class<? extends Saga> sagaClass) {
          checkNotNull(sagaClass, "The type of the saga has to be defined.");
  
          SagaType sagaType = new SagaType();
          sagaType.startsNew = false;
          sagaType.sagaClass = sagaClass;
  
          return sagaType;
      }
docs: Creates a type continuing a saga with an instance key that has yet to be defined.