code: @Help(help = "Get the VirtualNetworkFunctionRecord of NetworkServiceRecord with specific id")
    public VirtualNetworkFunctionRecord getVirtualNetworkFunctionRecord(
        final String id, final String idVnfr) throws SDKException {
      String url = id + "/vnfrecords" + "/" + idVnfr;
      return (VirtualNetworkFunctionRecord) requestGet(url, VirtualNetworkFunctionRecord.class);
    }
docs: Returns a specific VirtualNetworkFunctionRecord which is contained in a NetworkServiceRecord.
  
  @param id the ID of the NetworkServiceRecord
  @param idVnfr the ID of the VirtualNetworkFunctionRecord
  @return the VirtualNetworkFunctionRecord
  @throws SDKException if the request fails