code: func KeyMapSet(xu *xgbutil.XUtil, keyMapReply *xproto.GetKeyboardMappingReply) {
  	xu.Keymap = &xgbutil.KeyboardMapping{keyMapReply}
  }
docs: // KeyMapSet updates XUtil.keymap.
  // This is exported for use in the keybind package. You probably shouldn't
  // use this. (You may need to use this if you're rolling your own event loop,
  // and still want to use the keybind package.)