> session = db.getMongo().startSession()
> db = session.getDatabase('test')
test
> session.startTransaction()
> db.foo.insert({a:1})
Given transaction number 0 does not match any in-progress transactions.
WriteCommandError({
	"errorLabels": [
		"TransientTransactionError"
	],
	"operationTime": Timestamp(1529690056, 1),
	"ok": 0,
	"errmsg": "Given transaction number 0 does not match any in-progress transactions.",
	"code": 251,
	"codeName": "NoSuchTransaction",
	"$clusterTime": {
		"clusterTime": Timestamp(1529690056, 1),
		"signature": {
			"hash": BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
			"keyId": NumberLong(0)
		}
	}
})