code: public void setTraceSummaries(java.util.Collection<TraceSummary> traceSummaries) {
          if (traceSummaries == null) {
              this.traceSummaries = null;
              return;
          }
  
          this.traceSummaries = new java.util.ArrayList<TraceSummary>(traceSummaries);
      }
docs: <p>
  Trace IDs and metadata for traces that were found in the specified time frame.
  </p>
  
  @param traceSummaries
  Trace IDs and metadata for traces that were found in the specified time frame.