Updates a reminder

        :param reminder_id: the reminder id
        :param reminder_dict: dict
        :return: dict

def update_reminder(self, reminder_id, reminder_dict):
        """
        Updates a reminder

        :param reminder_id: the reminder id
        :param reminder_dict: dict
        :return: dict
        """
        return self._create_put_request(
            resource=REMINDERS,
            billomat_id=reminder_id,
            send_data=reminder_dict
        )