code: static public function transApiDoc(string $translationPath, array $parameters = [], $locale = null) {
          if (static::class === self::class) {
              // redirect CmfConfig::transApiDoc() calls to primary config class
              return self::getPrimary()->transApiDoc($translationPath, $parameters, $locale);
          } else {
              $translationPath = 'api_docs.' . ltrim($translationPath, '.');
              return static::transCustom($translationPath, $parameters, $locale);
          }
      }
docs: Translations for Api Docs
  @param string $translationPath
  @param array $parameters
  @param null $locale
  @return string|array