docs: public ListStepsRequest withStepStates(StepState... stepStates) {
          com.amazonaws.internal.SdkInternalList<String> stepStatesCopy = new com.amazonaws.internal.SdkInternalList<String>(stepStates.length);
          for (StepState value : stepStates) {
              stepStatesCopy.add(value.toString());
          }
          if (getStepStates() == null) {
              setStepStates(stepStatesCopy);
          } else {
              getStepStates().addAll(stepStatesCopy);
          }
          return this;
      }