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(
                "traffic.csv",
                uri=_DEFAULT_PATH + "/traffic.csv",
                hash="a2105f364ef70aec06c757304833f72a",
                header_time="Date",
                format_time="%Y-%m-%d %H:%M:%S",
                freq="1" + freqs["h"],
                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