trait DrupalDataCollectorTrait in Devel 8.2

trait DrupalDataCollectorTrait {

  /**
   * {@inheritdoc}
   */
  public function reset() {
    $this->data = array();
  }

  /**
   * {@inheritdoc}
   */
  public function getPanelSummary() {
    return NULL;
  }

  /**
   * {@inheritdoc}
   */
  public function hasPanel() {
    return TRUE;
  }

  /**
   * {@inheritdoc}
   */
  public function getLibraries() {
    return [];
  }

  /**
   * {@inheritdoc}
   */
  public function getDrupalSettings() {
    return [];
  }

  /**
   * @return mixed
   */
  public function getData() {
    return $this->data;
  }

  /**
   * @param $class
   * @param $method
   *
   * @return array
   */
  public function getMethodData($class, $method) {
    $class = is_object($class) ? get_class($class) : $class;
    $data = [];
    try {
      $reflectedMethod = new \ReflectionMethod($class, $method);
      $data = [
        'class' => $class,
        'method' => $method,
        'file' => $reflectedMethod
          ->getFilename(),
        'line' => $reflectedMethod
          ->getStartLine(),
      ];
    } catch (\ReflectionException $re) {

      // TODO: handle the exception.
    } finally {
      return $data;
    }
  }

  /**
   * @param $value
   *
   * @return int|string
   */
  private function convertToBytes($value) {
    if ('-1' === $value) {
      return -1;
    }
    $value = strtolower($value);
    $max = strtolower(ltrim($value, '+'));
    if (0 === strpos($max, '0x')) {
      $max = intval($max, 16);
    }
    elseif (0 === strpos($max, '0')) {
      $max = intval($max, 8);
    }
    else {
      $max = intval($max);
    }
    switch (substr($value, -1)) {
      case 't':
        $max *= 1024;
        break;
      case 'g':
        $max *= 1024;
        break;
      case 'm':
        $max *= 1024;
        break;
      case 'k':
        $max *= 1024;
        break;
    }
    return $max;
  }

}