code: def get_urls(self):
          
  
          info = self.model._meta.app_label, self.model._meta.model_name
          return [
              url(r'^report/(?P<key>\w+)/(?P<period>\w)$',
                  self.admin_site.admin_view(self.report_view),
                  name='%s_%s_tracking_report' % info)
          ] + super(TrackedLiveAdmin, self).get_urls()
docs: Returns additional urls to add to a result of `get_urls` in a descendant ModelAdmin
          :return: A list of url declarations.