I am working on an extension that is going to use a custom token from Drupal content. I found the great example blog post from CiviCRM 4.1 but it appears that in CiviCRM 4.7 tokens switched to using
Civi\Token\TokenProcessor. I have looked at a few extensions that do not appear to be using this model. Is there a good example (other than the documentation) of the new model.