def METHOD_NAME(self):
    with open(
        f"{BASE_DIR}/data_dumps/manifests.csv", "r", encoding="utf-8"
    ) as file:
        iiif_reader = csv.DictReader(file)
        for row in iiif_reader:
            siglum = row["siglum"]
            manifest_url = row["manifest_url"]
            qs = Manuscript.objects.filter(siglum=siglum)
            if len(qs) > 0:
                mobj = qs[0]
                mobj.manifest_url = manifest_url
                mobj.save()