How to use the node-opcua-types.MdnsDiscoveryConfiguration function in node-opcua-types

// The globally unique identifier for the Server product.
            productUri: server.serverInfo.productUri,
            serverNames: [
                { locale: "en", text: server.serverInfo.productName }
            ],
            serverType: server.serverType,

            discoveryUrls,
            gatewayServerUri: null,
            isOnline,
            semaphoreFilePath: null
        },

        discoveryConfiguration: [
            new MdnsDiscoveryConfiguration({
                mdnsServerName: server.serverInfo.applicationUri,
                serverCapabilities: server.capabilitiesForMDNS
            })
        ]
    });
}