def auto_openstack_logging(interface, original):
 return interface_decorator('auto_openstack_logging', interface, _openstack_logged_method, original)

def auto_openstack_logging ( interface , original ) : return interface_decorator ( 'auto_openstack_logging' , interface , _openstack_logged_method , original )
create a class decorator which will add openstack-specific exception logging versions versions of all of the methods on interface .