old_contents: from django.contrib.staticfiles.templatetags.staticfiles import static
  from django.utils.html import format_html
  from wagtail.core import hooks
  
  import wagtailmodelchooser.urls
  
  
  @hooks.register('register_admin_urls')
  def register_model_chooser_admin_urls():
      return wagtailmodelchooser.urls.urlpatterns
  
  
  @hooks.register('insert_editor_js')
  def editor_js():
      return format_html('<script src="{}"></script>',
                         static('wagtailmodelchooser/js/model_chooser.js'))
  
new_contents: from django.templatetags.static import static
  from django.utils.html import format_html
  from wagtail.core import hooks
  
  import wagtailmodelchooser.urls
  
  
  @hooks.register('register_admin_urls')
  def register_model_chooser_admin_urls():
      return wagtailmodelchooser.urls.urlpatterns
  
  
  @hooks.register('insert_editor_js')
  def editor_js():
      return format_html('<script src="{}"></script>',
                         static('wagtailmodelchooser/js/model_chooser.js'))
  
subject: Fix Django import