def METHOD_NAME(dataset_name: str, backfill: bool = True) -> Optional[Path]:
    path: Optional[Path] = dataset_resource_path(dataset_name, INDEX_FILE)
    if path is not None and not path.exists() and backfill:
        path = backfill_resource(dataset_name, INDEX_FILE, path)
    if path is not None and path.exists():
        return path
    return None