def service_get_by_host_and_topic(context, host, topic):
 return IMPL.service_get_by_host_and_topic(context, host, topic)

def service_get_by_host_and_topic ( context , host , topic ) : return IMPL . service_get_by_host_and_topic ( context , host , topic )
get a service by hostname and topic it listens to .