private abstract static class Third<T, D> extends Second<T> {}

  private abstract static class Fourth<T, D> extends Third<D, T> {}

  private static class ConcreteIS extends Fourth<Integer, String> {}

  private static class ConcreteSI extends Fourth<String, Integer> {}

  public void testAssignableClassToClass() {
    @SuppressWarnings("rawtypes") // To test TypeToken<List>

  private abstract static class Third<T, D> extends Second<T> {}

  private abstract static class Fourth<T, D> extends Third<D, T> {}

  private static class ConcreteIS extends Fourth<Integer, String> {}

  private static class ConcreteSI extends Fourth<String, Integer> {}

  public void testAssignableClassToClass() {
    @SuppressWarnings("rawtypes") // To test TypeToken<List>

		HTTPStatusCode: http.StatusBadRequest,
	},

	// Generic Invalid-Request error. Should be used for response errors only for unlikely
	// corner case errors for which introducing new APIErrorCode is not worth it. LogIf()
	// should be used to log the error at the source of the error for debugging purposes.
	ErrInvalidRequest: {
		Code:           "InvalidRequest",
		Description:    "Invalid Request",