docs: public ListStepsRequest withStepStates(String... stepStates) {
          if (this.stepStates == null) {
              setStepStates(new com.amazonaws.internal.SdkInternalList<String>(stepStates.length));
          }
          for (String ele : stepStates) {
              this.stepStates.add(ele);
          }
          return this;
      }