def _fetch_members(self) -> dict[str, ZarrArray | ZarrGroup]:
        """
        Get the arrays and groups defined in the zarr group modelled by this Store
        """
        import zarr

        if zarr.__version__ >= "3":
            return dict(self.zarr_group.members())
        else:
            return dict(self.zarr_group.items())

        Get the arrays and groups defined in the zarr group modelled by this Store
        
xarray/backends/zarr.py