func (client *Client) Subscribe(topic string, fn interface{}, serverAddr, serverPath string) {
	client.doSubscribe(topic, fn, serverAddr, serverPath, Subscribe)
}
func (client *Client) Subscribe(topic string, fn interface{}, serverAddr, serverPath string) {
	client.doSubscribe(topic, fn, serverAddr, serverPath, Subscribe)
}
func ( client * Client ) Subscribe ( topic string , fn interface { } , serverAddr , serverPath string ) { client . doSubscribe ( topic , fn , serverAddr , serverPath , Subscribe ) }
//Subscribe subscribes to a topic in a remote event bus
Subscribe subscribes to a topic in a remote event bus