title: Tensorflow: how to view checkpoint in tensorboard?
body: <p>Suppose I have checkpoint with content:</p>
  
  <pre><code>checkpoint
  ├── model.ckpt-240000.data-00000-of-00001
  ├── model.ckpt-240000.index
  └── model.ckpt-240000.meta
  </code></pre>
  
  <p>Is it possible to view content of checkpoint in tensorboard or it only possible converting to <code>.pb</code> format?</p>