docs: @Override
      public InputType getOutputType(InputType... inputType) throws InvalidKerasConfigurationException {
          if (inputType.length > 1)
              throw new InvalidKerasConfigurationException(
                      "Keras Subsampling 2D layer accepts only one input (received " + inputType.length + ")");
          return this.getSubsampling2DLayer().getOutputType(-1, inputType[0]);
      }