def index(self, req, **kwargs):
        raise exc.HTTPNotImplemented()
md_at values in W3C Datetime syntax, Z notation
dataset/ETHPy150Open nii-cloud/dodai-compute/nova/api/openstack/shared_ip_groups.py/Controller.index--crossover with--dataset/ETHPy150Open resync/resync/resync/resource.py/Resource.md_at