You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: window.go
    path of file: ./repos/oak/shiny/driver/x11driver
    
    the code of the file until where you have to start completion: // Copyright 2015 The Go Auth
    
func (w *Window) Publish() {
	// TODO: implement a back buffer, and copy or flip that here to the front
	// buffer.

	// This sync isn't needed to flush the outgoing X11 requests. Instead, it
	// acts as a form of flow control. Outgoing requests can be quite small on
	// the wire, e.g. draw this texture ID (an integer) to this rectangle (four
	// more integers), but much more expensive on the server (blending a
	// million source and destination pixels). Without this sync, the Go X11
	// client could easily end up sending work at a faster rate than the X11
	// server can serve.
	w.s.xc.Sync()
}