item_spacing ) && 'discard' === $args->item_spacing ) { $t = ''; $n = ''; } else { $t = "\t"; $n = "\n"; } $indent = str_repeat( $t, $depth ); // Default class. $classes = array( 'sub-menu' ); /** * Filters the CSS class(es) applied to a menu list element. * * @since 4.8.0 * * @param string[] $classes Array of the CSS classes that are applied to the menu `