e</span>
<span class="sd">            module (nn.Module): Model</span>
<span class="sd">            layer (nn.Module, optional): The layer we wish to interpreter, if `None` then the last conv layer will be used. Defaults to None.</span>
<span class="sd">            target (int, optional): The target tensor, if `None` the model output (after softmax and argmax) wil be used. Defaults to None.</span>
<span class="sd">            ctx (torch.Tensor, optional): The tensor w.r we derive, if `None` we will use the 