title: Get current notebook/user context from JupyterHub notebook server?
body: <p>I'm running JupyterHub 0.8.2 on AWS EKS cluster.</p>
  
  <p>I would like to know if it is possible to retrieve the owner of the current notebook server.</p>
  
  <p>E.g.
  Let's assume I navigate to <code>myjupyterhubhost.com/user/john-doe/notebooks/SampleNotebook.ipynb</code></p>
  
  <p>In python, I want to do this:</p>
  
  <pre><code>user = get_current_context().get_notebook_user_owner()
  print(f"The user who owns this notebook server: {user}")
  
  # Output:
  # The user who owns this notebook server: john-doe
  </code></pre>
  
  <p>Is there any such function available in the python environment?</p>