deje el curso 4 anoche, bien hecho, hoy no me quiere compilar la linea <code>```Epoch 1/5 ----------------------------------------------...

deje el curso 4 anoche, bien hecho, hoy no me quiere compilar la linea

```Epoch 1/5
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-29-3dfcbb48c634> in <module>
----> 1 model.fit(x_train, y_train, epochs=5, batch_size=784)

1 frames
/usr/local/lib/python3.8/dist-packages/tensorflow/python/eager/def_function.py in _call(self, *args, **kwds)
    945       # In this case we have created variables on the first call, so we run the
    946       # defunned version which is guaranteed to never create variables.
--> 947       return self._stateless_fn(*args, **kwds)  # pylint: disable=not-callable
    948     elif self._stateful_fn is not None:
    949       # Release the lock early so that multiple threads can perform the call

TypeError: 'NoneType' object is not callable