docs: def id(opts):
      '''
      Return a unique ID for this proxy minion.  This ID MUST NOT CHANGE.
      If it changes while the proxy is running the salt-master will get
      really confused and may stop talking to this minion
      '''
      r = salt.utils.http.query(opts['proxy']['url']+'id', decode_type='json', decode=True)
      return r['dict']['id'].encode('ascii', 'ignore')