Matt Chan

Hi, I also encountered this issue on TF 2.7, and was able to fix it by editing surgeon.py https://github.com/BenWhetton/keras-surgeon/blob/b0b892988e725b9203afc48e639c49d06155b59b/src/kerassurgeon/surgeon.py#L390 to just `input_shape = node.input_shapes` and it doesn't seem to break...