docs: def get_admin_url(self, query_params=None, use_path=False):
          """Returns the URL for viewing a FileNode in the admin."""
  
          if not query_params:
              query_params = {}
  
          url = ''
          if self.is_top_node():
              url = reverse('admin:media_tree_filenode_changelist');
          elif use_path and (self.is_folder() or self.pk):
              url = reverse('admin:media_tree_filenode_open_path', args=(self.get_path(),));
          elif self.is_folder():
              url = reverse('admin:media_tree_filenode_changelist');
              query_params['folder_id'] = self.pk
          elif self.pk:
              return reverse('admin:media_tree_filenode_change', args=(self.pk,));
  
          if len(query_params):
              params = ['%s=%s' % (key, value) for key, value in query_params.items()]
              url = '%s?%s' % (url, "&".join(params))
  
          return url