WP_Widget_Custom_HTML::_register_one()
Method: Add hooks for enqueueing assets when registering all widget instances of this widget class.
Source: wp-includes/widgets/class-wp-widget-custom-html.php:65
Method: Add hooks for enqueueing assets when registering all widget instances of this widget class.
Source: wp-includes/widgets/class-wp-widget-custom-html.php:65