title: how to install keras_contrib in google colab?
body: <p>I want to apply instance normalization in my generator of 'GAN' and I am implementing my model in 'Google Colab', I am having trouble installing 'Keras_contrib' </p>
  
  <p>I have tried the following code:</p>
  
  <p>'''</p>
  
  <pre><code>!git clone https://www.github.com/keras-team/keras-contrib.git
  
  !cd keras-contrib
  
  !python setup.py install
  </code></pre>
  
  <p>'''</p>
  
  <p>fatal: destination path 'keras-contrib' already exists and is not an empty directory.
  python3: can't open file 'setup.py': [Errno 2] No such file or directory</p>