code: @Override
      public GetTraceSummariesResult getTraceSummaries(GetTraceSummariesRequest request) {
          request = beforeClientExecution(request);
          return executeGetTraceSummaries(request);
      }
docs: <p>
  Retrieves IDs and metadata for traces available for a specified time frame using an optional filter. To get the
  full traces, pass the trace IDs to <code>BatchGetTraces</code>.
  </p>
  <p>
  A filter expression can target traced requests that hit specific service nodes or edges, have errors, or come
  from a known user. For example, the following filter expression targets traces that pass through
  <code>api.example.com</code>:
  </p>
  <p>
  <code>service("api.example.com")</code>
  </p>
  <p>
  This filter expression finds traces that have an annotation named <code>account</code> with the value
  <code>12345</code>:
  </p>
  <p>
  <code>annotation.account = "12345"</code>
  </p>
  <p>
  For a full list of indexed fields and keywords that you can use in filter expressions, see <a
  href="http://docs.aws.amazon.com/xray/latest/devguide/xray-console-filters.html">Using Filter Expressions</a> in
  the <i>AWS X-Ray Developer Guide</i>.
  </p>
  
  @param getTraceSummariesRequest
  @return Result of the GetTraceSummaries operation returned by the service.
  @throws InvalidRequestException
  The request is missing required parameters or has invalid parameters.
  @throws ThrottledException
  The request exceeds the maximum number of requests per second.
  @sample AWSXRay.GetTraceSummaries
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/xray-2016-04-12/GetTraceSummaries" target="_top">AWS API
  Documentation</a>