code: private SagaInstanceInfo continueExistingSaga(final SagaState sagaState) {
          SagaInstanceInfo instanceInfo;
  
          try {
              Saga saga = instanceFactory.continueExisting(sagaState.getType(), sagaState);
              instanceInfo = SagaInstanceInfo.define(saga, false);
          } catch (ExecutionException e) {
              Throwables.propagate(e);
              instanceInfo = null;
          }
  
          return instanceInfo;
      }
docs: Create a new saga instance with already existing saga state.