in src/smclarify/util/dataset.py [0:0]
def download(self, s3_url, local) -> None:
(bucket, path) = self.url_bucket_key(s3_url)
self.s3.download_file(bucket, path, local)
o = self.s3r.Object(bucket, path)
mtime = o.last_modified.timestamp()
os.utime(local, (mtime, mtime))