Thread safe?

Is gowebsocket.Socket thread safe? Can I do something like this?
```
func foo(socket gowebsocket.Socket){
  log.Println("Connected to server");
  socket.SendText("Hi there, this is my sample test message")
}

...

socket.OnConnected = func(socket gowebsocket.Socket) {
  go foo(socket)
}
```

This is just an example.