docs: @Override
      public InputType getOutputType(InputType... inputType) throws InvalidKerasConfigurationException,
      UnsupportedKerasConfigurationException {
          if (inputType.length > 1)
              throw new InvalidKerasConfigurationException(
                      "Keras Loss layer accepts only one input (received " + inputType.length + ")");
          return this.getLossLayer(inputType[0]).getOutputType(-1, inputType[0]);
      }