def get_config(self, lesson=None):
        """
        Returns reset parameters which correspond to the lesson.
        :param lesson: The lesson you want to get the config of. If None, the
               current lesson is returned.
        :return: The configuration of the reset parameters.
        """
        if not self.data:
            return {}
        if lesson is None:
            lesson = self.lesson_num
        lesson = max(0, min(lesson, self.max_lesson_num))
        config = {}
        parameters = self.data['parameters']
        for key in parameters:
            config[key] = parameters[key][lesson]
        return config
Returns reset parameters which correspond to the lesson.
        :param lesson: The lesson you want to get the config of. If None, the
               current lesson is returned.
        :return: The configuration of the reset parameters.