code: public void setUtterances(java.util.Collection<UtteranceList> utterances) {
          if (utterances == null) {
              this.utterances = null;
              return;
          }
  
          this.utterances = new java.util.ArrayList<UtteranceList>(utterances);
      }
docs: <p>
  An array of <a>UtteranceList</a> objects, each containing a list of <a>UtteranceData</a> objects describing the
  utterances that were processed by your bot. The response contains a maximum of 100 <code>UtteranceData</code>
  objects for each version.
  </p>
  
  @param utterances
  An array of <a>UtteranceList</a> objects, each containing a list of <a>UtteranceData</a> objects
  describing the utterances that were processed by your bot. The response contains a maximum of 100
  <code>UtteranceData</code> objects for each version.