@property
  def headers(self):
    return self.__headers.copy()
Even if 'django.contrib.sites' is in INSTALLED_APPS, if
dataset/ETHPy150Open GoogleCloudPlatform/python-compat-runtime/appengine-compat/exported_appengine_sdk/google/appengine/api/taskqueue/taskqueue.py/Task.headers--crossover with--dataset/ETHPy150Open jcassee/django-analytical/analytical/tests/test_tag_chartbeat.py/ChartbeatTagTestCaseWithSites.test_auto_domain_false