> db.createCollection("foo", {clusteredIndex: {key: {id:1}}, unique: true, expireAfterSeconds: 12345})
{
        "ok" : 0,
        "errmsg" : "BSON field 'create.unique' is missing but a required field",
        "code" : 40414,
        "codeName" : "Location40414",
        "$clusterTime" : {
                "clusterTime" : Timestamp(1712323732, 1),
                "signature" : {
                        "hash" : BinData(0,"GiiotsVGXX4PF71l7/8+DXlqOhU="),
                        "keyId" : NumberLong("7354374102687154181")
                }
        },
        "operationTime" : Timestamp(1712323717, 1)
}