docs: public ListInstancesRequest withInstanceStates(String... instanceStates) {
          if (this.instanceStates == null) {
              setInstanceStates(new com.amazonaws.internal.SdkInternalList<String>(instanceStates.length));
          }
          for (String ele : instanceStates) {
              this.instanceStates.add(ele);
          }
          return this;
      }