def _predict_output_scikit_MLPRegressor(model, input):
    """
    Predict output function for scikit-learn MLPRegressor objects.
    """
    output = model.predict(input)
    # Ensure that output is 2D even when there is only one output channel.
    if output.ndim == 1:
        output = output.reshape(-1, 1)
    return output