title: Tensorflow Object Detection API no train.py file
body: <p>I've correctly installed Tensorflow Object Detection API according to the provided documentation. However, when I need to train my network there is no train.py file in the research/object_detection directory.
  Is there anything I can do to fix this?</p>
  
  <p>Link: <a href="https://github.com/tensorflow/models/blob/master/research/object_detection/g3doc/installation.md" rel="noreferrer">https://github.com/tensorflow/models/blob/master/research/object_detection/g3doc/installation.md</a></p>