title: What is a trackable object?
body: <p>I'm browsing the documentation around <code>SavedModels</code>, and <code>tf.saved_model.save</code> (<a href="https://www.tensorflow.org/api_docs/python/tf/saved_model/save" rel="nofollow noreferrer">docs</a>) does:</p>
  <blockquote>
  <p>Exports the Trackable object obj to SavedModel format.</p>
  </blockquote>
  <p><strong>What is a trackable object</strong>, I have not been able to find anything regarding this. Except for my PyCharm debugger printing it.</p>
  <hr />
  <p>I am reading the documentation because I need to understand how SavedModels work. I've tried to load some SavedModels and subsequently convert these to TensorFlow lite/ coreML. Things are not going well in this respect, and I'm completely lost there so I won't bother mentioning it much detail in this question.</p>