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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 delete_user(self, user_id):
 """Delete user specified user. :param str user_id: the ID of the user to delete (Required) :returns: void """

        api = self._get_api(iam.AccountAdminApi)
        api.delete_user(user_id)
        return