code: public AuthEventType withChallengeResponses(ChallengeResponseType... challengeResponses) {
          if (this.challengeResponses == null) {
              setChallengeResponses(new java.util.ArrayList<ChallengeResponseType>(challengeResponses.length));
          }
          for (ChallengeResponseType ele : challengeResponses) {
              this.challengeResponses.add(ele);
          }
          return this;
      }
docs: <p>
  The challenge responses.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setChallengeResponses(java.util.Collection)} or {@link #withChallengeResponses(java.util.Collection)} if
  you want to override the existing values.
  </p>
  
  @param challengeResponses
  The challenge responses.
  @return Returns a reference to this object so that method calls can be chained together.