WP_Widget_Custom_HTML::_register_one( int $number = -1 )

65	public function _register_one( $number = -1 ) {66		parent::_register_one( $number );67		if ( $this->registered ) {68			return;69		}70		$this->registered = true;71 72		/*73		 * Note that the widgets component in the customizer will also do74		 * the 'admin_print_scripts-widgets.php' action in WP_Customize_Widgets::print_scripts().75		 */76		add_action( 'admin_print_scripts-widgets.php', array( $this, 'enqueue_admin_scripts' ) );77 78		/*79		 * Note that the widgets component in the customizer will also do80		 * the 'admin_footer-widgets.php' action in WP_Customize_Widgets::print_footer_scripts().81		 */82		add_action( 'admin_footer-widgets.php', array( 'WP_Widget_Custom_HTML', 'render_control_template_scripts' ) );83 84		// Note this action is used to ensure the help text is added to the end.85		add_action( 'admin_head-widgets.php', array( 'WP_Widget_Custom_HTML', 'add_help_text' ) );86	}