title: Tensorflow - which is the real checkpoint file?
body: <p>I'm trying to used pretrained models with checkpoints but I can't figure out which file should be put into config as checkpoint. There are files:</p>
  
  <ul>
  <li>model.ckpt.meta  </li>
  <li>model.ckpt.index</li>
  <li>model.ckpt.data0000-of-0001</li>
  </ul>
  
  <p>I tried all of them but I see errors. In the different articles I saw just "model.ckpt" but there is no such files.</p>
  
  <p>I tried to work with ssd_mobilenet from here: <a href="https://github.com/tensorflow/models/blob/master/research/object_detection/g3doc/detection_model_zoo.md" rel="nofollow noreferrer">https://github.com/tensorflow/models/blob/master/research/object_detection/g3doc/detection_model_zoo.md</a></p>