code: public DescribePullRequestEventsResult withPullRequestEvents(PullRequestEvent... pullRequestEvents) {
          if (this.pullRequestEvents == null) {
              setPullRequestEvents(new java.util.ArrayList<PullRequestEvent>(pullRequestEvents.length));
          }
          for (PullRequestEvent ele : pullRequestEvents) {
              this.pullRequestEvents.add(ele);
          }
          return this;
      }
docs: <p>
  Information about the pull request events.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setPullRequestEvents(java.util.Collection)} or {@link #withPullRequestEvents(java.util.Collection)} if
  you want to override the existing values.
  </p>
  
  @param pullRequestEvents
  Information about the pull request events.
  @return Returns a reference to this object so that method calls can be chained together.