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

3761	 * @param string      $url    The complete network site URL including scheme and path.3762	 * @param string      $path   Path relative to the network site URL. Blank string if3763	 *                            no path is specified.3764	 * @param string|null $scheme Scheme to give the URL context. Accepts 'http', 'https',3765	 *                            'relative' or null.3766	 */3767	return apply_filters( 'network_site_url', $url, $path, $scheme );3768}3769 3770/**3771 * Retrieves the home URL for the current network.3772 *3773 * Returns the home URL with the appropriate protocol, 'https' is_ssl()