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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def list_group_users(self, group_id, **kwargs):
 """List users of a group. :param str group_id: The group ID (Required) :param int limit: The number of users to retrieve :param str order: The ordering direction, ascending (asc) or descending (desc) :param str after: Get API keys after/starting at given user ID :returns: a list of :py:class:`User` objects. :rtype: PaginatedResponse """

        kwargs["group_id"] = group_id
        kwargs = self._verify_sort_options(kwargs)
        api = self._get_api(iam.AccountAdminApi)
        return PaginatedResponse(api.get_users_of_group, lwrap_type=User, **kwargs)