apply_filters( 'network_site_url', string $url, string $path, string|null $scheme )

3753	 * @param string      $url    The complete network site URL including scheme and path.3754	 * @param string      $path   Path relative to the network site URL. Blank string if3755	 *                            no path is specified.3756	 * @param string|null $scheme Scheme to give the URL context. Accepts 'http', 'https',3757	 *                            'relative' or null.3758	 */3759	return apply_filters( 'network_site_url', $url, $path, $scheme );3760}3761 3762/**3763 * Retrieves the home URL for the current network.3764 *3765 * Returns the home URL with the appropriate protocol, 'https' is_ssl()