code: def reminders_complete(self, *, reminder: str, **kwargs) -> SlackResponse:
          
          self._validate_xoxp_token()
          kwargs.update({"reminder": reminder})
          return self.api_call("reminders.complete", json=kwargs)
docs: Marks a reminder as complete.
  
          Args:
              reminder (str): The ID of the reminder to be marked as complete.
                  e.g. 'Rm12345678'