def users_create_token(self, user_id=None, username=None, **kwargs):
if user_id:<EOL><INDENT>return self.__call_api_post('<STR_LIT>', userId=user_id, kwargs=kwargs)<EOL><DEDENT>elif username:<EOL><INDENT>return self.__call_api_post('<STR_LIT>', username=username, kwargs=kwargs)<EOL><DEDENT>else:<EOL><INDENT>raise RocketMissingParamException('<STR_LIT>')<EOL><DEDENT>
Create a user authentication token.