Widget ID function

Can you consider adding this function in so we can easily identify what our widget ID is…

add_action('in_widget_form', 'spice_get_widget_id');
function spice_get_widget_id($widget_instance)
{
    if ($widget_instance->number=="__i__"){
     echo "<p><strong>Widget ID is</strong>: Pls save the widget first!</p>"   ;
  }  else {
       echo "<p><strong>Widget ID is: </strong>" .$widget_instance->id. "</p>";
    }
}

thanks to https://wordpress.org/plugins/get-widget-id/

https://wordpress.org/plugins/amr-shortcode-any-widget/