driver.go
func RegisterDriver(d Driver, knownNames ...string) {
	for _, k := range knownNames {
		drivers[strings.ToLower(k)] = d
	}
	log.Info("registered pubsub driver: %v", knownNames)
}
func RegisterDriver(d Driver, knownNames ...string) {
	for _, k := range knownNames {
		drivers[strings.ToLower(k)] = d
	}
	log.Info("registered pubsub driver: %v", knownNames)
}
func RegisterDriver ( d Driver , knownNames ... string ) { for _ , k := range knownNames { drivers [ strings . ToLower ( k ) ] = d } log . Info ( " " , knownNames ) }
// RegisterDriver registers driver with given names.
RegisterDriver registers driver with given names .