code: @Help(
      help =
          "Get all the VirtualNetworkFunctionDescriptors of a NetworkServiceDescriptor with specific id"
    )
    @Deprecated
    public List<VirtualNetworkFunctionDescriptor> getVirtualNetworkFunctionDescriptors(
        final String idNSD) throws SDKException {
      String url = idNSD + "/vnfdescriptors";
      return Arrays.asList(
          (VirtualNetworkFunctionDescriptor[])
              requestGetAll(url, VirtualNetworkFunctionDescriptor.class));
    }
docs: Get all VirtualNetworkFunctionDescriptors contained in a NetworkServiceDescriptor specified by
  its ID.
  
  @param idNSD the NetworkServiceDescriptor's id
  @return a List of all VirtualNetworkServiceDescriptors contained in the
  NetworkServiceDescriptor
  @throws SDKException if the request fails