do_action( 'dynamic_sidebar_before', int|string $index, bool $has_widgets )

732	 * @since 3.9.0733	 *734	 * @param int|string $index       Index, name, or ID of the dynamic sidebar.735	 * @param bool       $has_widgets Whether the sidebar is populated with widgets.736	 *                                Default true.737	 */738	do_action( 'dynamic_sidebar_before', $index, true );739 740	if ( ! is_admin() && ! empty( $sidebar['before_sidebar'] ) ) {741		echo $sidebar['before_sidebar'];742	}743 744	$did_one = false;