title: AttributeError: module 'tensorflow.python.keras.engine.training' has no attribute '_disallow_inside_tf_function'
body: <p>I am trying to develop a chatbot with rasa, and when I run rasa init to train the bot I have this error. I have TensorFlow 2.3.2, Keras 2.3.1, python 3.8.5.
  I don't know if there is a compatibility problem. I am trying also to use a virtual environment.</p>
  <pre><code>AttributeError: module 'tensorflow.python.keras.engine.training' has no attribute '_disallow_inside_tf_function'
  </code></pre>