Property
AdwToast:button-label
Description [src]
The label to show on the button.
Underlines in the button text can be used to indicate a mnemonic.
If set to NULL, the button won’t be shown.
See AdwToast:action-name.
          Type:gchar*
| Default value | NULL | 
| Getter method | adw_toast_get_button_label() | 
| Setter method | adw_toast_set_button_label() |