Shift the block by `periods`.

        Dispatches to underlying ExtensionArray and re-boxes in an
        ExtensionBlock.

def shift(self,
              periods: int,
              axis: libinternals.BlockPlacement = 0,
              fill_value: Any = None) -> List['ExtensionBlock']:
        """
        Shift the block by `periods`.

        Dispatches to underlying ExtensionArray and re-boxes in an
        ExtensionBlock.
        """
        return [
            self.make_block_same_class(
                self.values.shift(periods=periods, fill_value=fill_value),
                placement=self.mgr_locs, ndim=self.ndim)
        ]