code: public void setPullRequestIds(java.util.Collection<String> pullRequestIds) {
          if (pullRequestIds == null) {
              this.pullRequestIds = null;
              return;
          }
  
          this.pullRequestIds = new java.util.ArrayList<String>(pullRequestIds);
      }
docs: <p>
  The system-generated IDs of the pull requests.
  </p>
  
  @param pullRequestIds
  The system-generated IDs of the pull requests.