code: @Help(help = "update VirtualNetworkFunctionRecord")
    public String updateVNFR(
        final String idNsr,
        final String idVnfr,
        final VirtualNetworkFunctionRecord virtualNetworkFunctionRecord)
        throws SDKException {
      String url = idNsr + "/vnfrecords" + "/" + idVnfr;
      return requestPut(url, virtualNetworkFunctionRecord).toString();
    }
docs: Updates a VirtualNetworkFunctionRecord.
  
  @param idNsr the ID of the NetworkServiceRecord containing the VirtualNetworkFunctionRecord
  @param idVnfr the ID of the VirtualNetworkFunctionRecord to update
  @param virtualNetworkFunctionRecord the updated version of the VirtualNetworkFunctionRecord
  @return the updated VirtualNetworkFunctionRecord
  @throws SDKException if the request fails