translateByHandler = function (translationId, interpolateParams, defaultTranslationText, sanitizeStrategy) {
      // If we have a handler factory - we might also call it here to determine if it provides
      // a default text for a translationid that can't be found anywhere in our tables
      if ($missingTranslationHandlerFactory) {
        return $injector.get($missingTranslationHandlerFactory)(translationId, $uses, interpolateParams, defaultTranslationText, sanitizeStrategy);
      } else {
        return translationId;
      }
    }
@name translateByHandler
@private

Translate by missing translation handler.

@param translationId
@param interpolateParams
@param defaultTranslationText
@param sanitizeStrategy sanitize strategy override

@returns translation created by $missingTranslationHandler or translationId is $missingTranslationHandler is
absent