Relu
    because the model file only defined these things in the forward method
    &#39;&#39;&#39;
    mods = list(model.modules())[1:]
    relevant, irrelevant = propagate_conv_linear(relevant, irrelevant, mods[0])
    relevant, irrelevant = propagate_pooling(relevant, irrelevant,
                                             lambda x: F.max_pool2d(x, 2, return_indices=True))
    relevant, irrelevant = propagate_relu(relevant, irrelevant, F.relu)

    relevant, irrelevant = propagate_conv_linear(relevant, 