code: func (c *Emulation) SetScrollbarsHidden(hidden bool) (*gcdmessage.ChromeResponse, error) {
  	var v EmulationSetScrollbarsHiddenParams
  	v.Hidden = hidden
  	return c.SetScrollbarsHiddenWithParams(&v)
  }
docs: // SetScrollbarsHidden -
  // hidden - Whether scrollbars should be always hidden.