def METHOD_NAME(self, subnet, context):
    """Write data to etcd to describe a DHCP-enabled subnet."""
    LOG.info("Write subnet %s %s to etcd", subnet['id'], subnet['cidr'])
    write_data = self.neutron_to_etcd_write_data(subnet,
                                                 context,
                                                 reread=False)
    return self.update_in_etcd(
        datamodel_v2.key_for_subnet(subnet['id'], self.region_string),
        write_data)