Tolerance\Metrics\Publisher\MetricPublisher::publish PHP Method

    public function publish(array $metrics);

 /**
  * @param RequestEnded $event
  */
 public function onRequestEnd(RequestEnded $event)
 {
     $request = $event->getRequest();
     if (null === ($requestTime = $request->attributes->get('_tolerance_request_time', null))) {
         $this->logger !== null && $this->logger->debug('The request do not contain the start time');
         return;
     }
     $requestDurationInSeconds = microtime(true) - (double) $requestTime;
     $requestDurationInMilliseconds = $requestDurationInSeconds * 1000;
     $namespace = $this->requestMetricNamespaceResolver->resolve($request);
     $this->metricPublisher->publish([new Metric($namespace, $requestDurationInMilliseconds, Metric::TYPE_TIMING), new Metric($namespace, null, Metric::TYPE_INCREMENT)]);
 }