code: def list_users(self, objectmask=None, objectfilter=None):
          
  
          if objectmask is None:
              objectmask = """mask[id, username, displayName, userStatus[name], hardwareCount, virtualGuestCount,
                                   email, roles]"""
  
          return self.account_service.getUsers(mask=objectmask, filter=objectfilter)
docs: Lists all users on an account
  
          :param string objectmask: Used to overwrite the default objectmask.
          :param dictionary objectfilter: If you want to use an objectfilter.
          :returns: A list of dictionaries that describe each user
  
          Example::
              result = mgr.list_users()