def METHOD_NAME(factories):
    annotation = factories.Annotation(
        created=datetime.utcnow(), updated=datetime.utcnow() + timedelta(hours=1)
    )
    feed = atom.feed_from_annotations(
        [annotation], "atom_url", lambda annotation: "annotation url"
    )
    assert feed["entries"][0]["published"] == f"utc_iso8601_return:{annotation.created}"
    assert feed["entries"][0]["updated"] == f"utc_iso8601_return:{annotation.updated}"