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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 async def set_config(self, config):
 """Set configuration keys on this model. :param dict config: Mapping of config keys to either string values or `ConfigValue` instances, as returned by `get_config`. """

        config_facade = client.ModelConfigFacade.from_connection(
            self.connection()
        )
        for key, value in config.items():
            if isinstance(value, ConfigValue):
                config[key] = value.value
        await config_facade.ModelSet(config)