title: no attribute 'set_keras_submodules'
body: <p>getting:</p>
  
  <blockquote>
    <p>AttributeError: module 'keras_applications' has no attribute
    'set_keras_submodules'</p>
  </blockquote>
  
  <p>in:</p>
  
  <pre><code>keras_applications.set_keras_submodules(backend, layers, models, utils)
  </code></pre>
  
  <p>solutions of this issue
  <a href="https://github.com/tensorflow/tensorflow/issues/25062" rel="nofollow noreferrer">https://github.com/tensorflow/tensorflow/issues/25062</a>
  don't solve the error</p>
  
  <p>on:</p>
  
  <ul>
  <li>python 3.7.3</li>
  <li>tensorflow 1.14.0</li>
  <li>keras 2.2.4</li>
  <li>keras_applications 1.0.8</li>
  </ul>