docs: def attachedimage_form_factory(lang='en', debug=False):
      ''' Returns ModelForm class to be used in admin.
          'lang' is the language for GearsUploader (can be 'en' and 'ru' at the
          moment).
      '''
      yui = '' if debug else '.yui'
      class _AttachedImageAdminForm(forms.ModelForm):
  
          caption = forms.CharField(label=_('Caption'), required=False)
  
          class Media:
              js = [
                    'generic_images/js/mootools-1.2.4-core-yc.js',
                    'generic_images/js/GearsUploader.%s%s.js' % (lang, yui,),
                    'generic_images/js/AttachedImageInline.js',
              ]
  
          class Meta:
              model = AttachedImage
      return _AttachedImageAdminForm