code: func (menu *Menu) SetChecked(commandID uint, checked bool) {
  	command := Command{
  		Method: "set_checked",
  		Args: CommandArguments{
  			CommandID: commandID,
  			Value:     checked,
  		},
  	}
  
  	for _, item := range menu.Items {
  		if item.IsCommandID(commandID) {
  			item.Checked = checked
  		}
  	}
  	menu.CallWhenDisplayed(&command)
  }
docs: /*
  SetChecked Checks or Unchecks a CheckItem in the UI
  */