code: public GetCrawlerMetricsResult withCrawlerMetricsList(CrawlerMetrics... crawlerMetricsList) {
          if (this.crawlerMetricsList == null) {
              setCrawlerMetricsList(new java.util.ArrayList<CrawlerMetrics>(crawlerMetricsList.length));
          }
          for (CrawlerMetrics ele : crawlerMetricsList) {
              this.crawlerMetricsList.add(ele);
          }
          return this;
      }
docs: <p>
  A list of metrics for the specified crawler.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setCrawlerMetricsList(java.util.Collection)} or {@link #withCrawlerMetricsList(java.util.Collection)} if
  you want to override the existing values.
  </p>
  
  @param crawlerMetricsList
  A list of metrics for the specified crawler.
  @return Returns a reference to this object so that method calls can be chained together.