code: def from_xarray(cls, arr: "xarray.Dataset") -> "Histogram1D":
          
          kwargs = {'frequencies': arr["frequencies"],
                    'binning': arr["bins"],
                    'errors2': arr["errors2"],
                    'overflow': arr.attrs["overflow"],
                    'underflow': arr.attrs["underflow"],
                    'keep_missed': arr.attrs["keep_missed"]}
          # TODO: Add stats
          return cls(**kwargs)
docs: Convert form xarray.Dataset
  
          Parameters
          ----------
          arr: The data in xarray representation