code: public function extend(EloquentBuilder $builder)
      {
          $builder->macro('onlyTranslated', function (EloquentBuilder $builder, $locale = null) {
              $builder->getModel()->setOnlyTranslated(true);
  
              if($locale) {
                  $builder->getModel()->setLocale($locale);
              }
  
              return $builder;
          });
  
          $builder->macro('withUntranslated', function (EloquentBuilder $builder) {
              $builder->getModel()->setOnlyTranslated(false);
  
              return $builder;
          });
  
          $builder->macro('withFallback', function (EloquentBuilder $builder, $fallbackLocale = null) {
              $builder->getModel()->setWithFallback(true);
  
              if($fallbackLocale) {
                  $builder->getModel()->setFallbackLocale($fallbackLocale);
              }
  
              return $builder;
          });
  
          $builder->macro('withoutFallback', function (EloquentBuilder $builder) {
              $builder->getModel()->setWithFallback(false);
  
              return $builder;
          });
  
          $builder->macro('translateInto', function (EloquentBuilder $builder, $locale) {
              if($locale) {
                  $builder->getModel()->setLocale($locale);
              }
  
              return $builder;
          });
  
          $builder->macro('withoutTranslations', function (EloquentBuilder $builder) {
              $builder->withoutGlobalScope(static::class);
  
              return $builder;
          });
  
          $builder->macro('withAllTranslations', function (EloquentBuilder $builder) {
              $builder->withoutGlobalScope(static::class)
                  ->with('translations');
  
              return $builder;
          });
      }
docs: Extend the builder.
  @param Builder $builder