apply_filters( 'add_signup_meta', array $meta )

498	 *     An array of default site meta variables.499	 *500	 *     @type int $lang_id     The language ID.501	 *     @type int $blog_public Whether search engines should be discouraged from indexing the site. 1 for true, 0 for false.502	 * }503	 */504	$meta = apply_filters( 'add_signup_meta', $meta_defaults );505 506	$blog_id = wpmu_create_blog( $domain, $path, $blog_title, $current_user->ID, $meta, get_current_network_id() );507 508	if ( is_wp_error( $blog_id ) ) {509		return false;510	}