Gets a float config value
        :param section: Section
        :param key: Key
        :param fallback: Optional fallback value

def _get_config_float(self, section: str, key: str, fallback: float=object()) -> float:
        """
        Gets a float config value
        :param section: Section
        :param key: Key
        :param fallback: Optional fallback value
        """
        return self._config.getfloat(section, key, fallback=fallback)