Get the combined configuration of all curriculums in this
        MetaCurriculum.

        Returns:
            A dict from parameter to value.

def get_config(self):
        """Get the combined configuration of all curriculums in this
        MetaCurriculum.

        Returns:
            A dict from parameter to value.
        """
        config = {}

        for _, curriculum in self.brains_to_curriculums.items():
            curr_config = curriculum.get_config()
            config.update(curr_config)

        return config