Superevent Vo Event

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{
    "voevent_type": "IN",
    "file_version": 0,
    "ivorn": "ivo://gwnet/LVC#S191215w-3-Initial",
    "created": "2019-12-15 22:49:49 UTC",
    "issuer": "emfollow",
    "filename": "S191215w-3-Initial.xml",
    "N": 3,
    "links": {
        "self": "https://gracedb.ligo.org/api/superevents/S191215w/voevents/3/",
        "file": "https://gracedb.ligo.org/api/superevents/S191215w/files/S191215w-3-Initial.xml,0"
    }
}