How to use the @node-wot/core.ContentSerdes.TD function in @node-wot/core

constructor(server?: CoapServer) {
    // if server is passed, feed its socket into the CoAP agent for socket re-use
    this.agent = new coap.Agent(server ? { socket: server.getSocket() } : undefined);
    
    // WoT-specific content formats
    coap.registerFormat(ContentSerdes.JSON_LD, 2100);
    // TODO also register content fromat with IANA
    // from experimental range for now
    coap.registerFormat(ContentSerdes.TD, 65100);
    // TODO need hook from ContentSerdes for runtime data formats
  }