How to use the @node-wot/core.Helpers.setStaticAddress function in @node-wot/core

this.config.servient.clientOnly = true;
        }
        
        // load credentials from config
        this.addCredentials(this.config.credentials);

        // remove secrets from original for displaying config (already added)
        if(this.config.credentials) delete this.config.credentials;

        // display
        console.info("DefaultServient configured with");
        console.dir(this.config);

        // apply config
        if (typeof this.config.servient.staticAddress === "string") {
            Helpers.setStaticAddress(this.config.servient.staticAddress);
        }
        if (!this.config.servient.clientOnly) {

            if (this.config.http !== undefined) {
                let httpServer = new HttpServer(this.config.http);
                this.addServer(httpServer);

                // re-use httpServer (same port)
                this.addServer(new WebSocketServer(httpServer));
            }
            if (this.config.coap !== undefined) {
                // var to reuse below in CoapClient
                var coapServer = (typeof this.config.coap.port === "number") ? new CoapServer(this.config.coap.port) : new CoapServer();
                this.addServer(coapServer);
            }
            if (this.config.mqtt !== undefined) {