def __getitem__(self, item: int) -> Dict[str, torch.Tensor]:
        """
        Get item

        Args:
            item: item to get

        Returns:
            dict of image, target, cid and is_query key
        """
        sample = super().__getitem__(idx=item)
        sample["cids"] = self._cids[item]
        return sample

        Get item

        Args:
            item: item to get

        Returns:
            dict of image, target, cid and is_query key
        
tests/catalyst/runners/test_reid.py