NMDeviceWifi @nmdevicewifi: the object which received the signal. @arg1: @nmdevicewifi: the object which received the signal. @arg1: @parent: @access_point_added: @access_point_removed: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @path: @Returns: @device: @Returns: @device: @cancellable: @error: @Returns: @device: @cancellable: @callback: @user_data: @device: @result: @error: @Returns: