Chapter14 notebook: keras.applications.resnet50.decode_predictions() does not work

When I execute the following code from the notebook of chapter 14: (its the exact same code as in the notebook)

```python
top_K = keras.applications.resnet50.decode_predictions(Y_proba, top=3)
```

I get the following error:

```
AttributeError: 'tensorflow.python.framework.ops.EagerTensor' object has no attribute 'argsort'
```