docs: def list_users(self, envs=[], query="/users/"):
          """
          List users in specified environments
          """
          juicer.utils.Log.log_debug(
                  "List Users In: %s", ", ".join(envs))
          for env in envs:
              juicer.utils.Log.log_info("%s:" % (env))
              _r = self.connectors[env].get(query)
              if _r.status_code == Constants.PULP_GET_OK:
                  for user in juicer.utils.load_json_str(_r.content):
                      roles = user['roles']
                      if roles:
                          user_roles = ', '.join(roles)
                      else:
                          user_roles = "None"
                      juicer.utils.Log.log_info("\t%s - %s" % (user['login'], user_roles))
              else:
                  _r.raise_for_status()
          return True