add_filter(
   'friends_admin_tabs',
    function( array $string_list ) {
        // Your code here.
        return $string_list;
    }
);

apply_filters(
		'friends_admin_tabs',
		array(
			$home_label                      => 'friends',
			__( 'Settings' )                 => 'friends-settings', // phpcs:ignore WordPress.WP.I18n.MissingArgDomain
			__( 'Notifications', 'friends' ) => 'friends-notification-manager',
			__( 'Import/Export', 'friends' ) => 'friends-import-export',
		)
	)