public function getLoggerEntityStorage() {
    // TODO: Delete this, after deprecated 'logger_entity' deleting
    // and create instance in __construct.
    if ($this->loggerEntityStorage) {
      return $this->loggerEntityStorage;
    }

    $this->loggerEntityStorage = $this->entityTypeManager
      ->getStorage($this->getLoggerEntityTypeName());
    return $this->loggerEntityStorage;
  }