docs: public GetUtterancesViewResult withUtterances(UtteranceList... utterances) {
          if (this.utterances == null) {
              setUtterances(new java.util.ArrayList<UtteranceList>(utterances.length));
          }
          for (UtteranceList ele : utterances) {
              this.utterances.add(ele);
          }
          return this;
      }