old_contents: c.NotebookApp.ip = '*'
  c.NotebookApp.port = 8998
  c.NotebookApp.open_browser = False
  c.NotebookApp.keyfile = u'/home/ubuntu/.certificates/jupyterkey.pem'
  c.NotebookApp.certfile = u'/home/ubuntu/.certificates/jupytercert.pem'
  c.NotebookApp.password = u'PASSWORDHASH'
  
new_contents: c.NotebookApp.ip = '*'
  c.NotebookApp.port = 8998
  c.NotebookApp.open_browser = False
  c.NotebookApp.keyfile = u'/home/ubuntu/.certificates/jupyterkey.pem'
  c.NotebookApp.certfile = u'/home/ubuntu/.certificates/jupytercert.pem'
  c.NotebookApp.password = uPASSWORDHASH
  
subject: Remove quotes around PASSWORDHASH