title: WARNING from Tensorflow when creating VGG16
body: <p>I am using Keras to create a deep learning model. When I creating a VGG16 model, the model is created but I get the following warning.</p>
  
  <pre><code>vgg16_model = VGG16()
  </code></pre>
  
  <p>why this warning happens and how can I resolve this?</p>
  
  <pre><code>WARNING:tensorflow:From /usr/local/lib/python3.6/dist-packages/tensorflow/python/framework/op_def_library.py:263: colocate_with (from tensorflow.python.framework.ops) is deprecated and will be removed in a future version.
  Instructions for updating:
  Colocations handled automatically by placer.
  </code></pre>