def __init__(self, multivariate: bool = True):
        """
        Parameters
        ----------
        multivariate: bool
            Whether to return a single multivariate timeseries - if False returns a list of univariate TimeSeries.
            Default is True.
        """
        super().__init__(
            metadata=DatasetLoaderMetadata(
                "exchange_rate.csv",
                uri=_DEFAULT_PATH + "/exchange_rate.csv",
                hash="6e35621a9eb6a9dd5465cf52a22b1339",
                header_time=None,
                multivariate=multivariate,
            )
        )

        Parameters
        ----------
        multivariate: bool
            Whether to return a single multivariate timeseries - if False returns a list of univariate TimeSeries.
            Default is True.
        
darts/datasets/__init__.py