Type Alias QueueEvent

QueueEvent:
    | EnqueueReceipt
    | CohortCommitReceipt
    | QueuedFillReceipt
    | QueuedRefundReceipt
    | OpenRecordPayoutReceipt
    | MarketPayoutsCompletedReceipt
    | RecordFundsReceipt
    | QueueOpsReceipt

Every delayed-execution order event, tagged, in chain order. Feed it to queue.reduceOrderEvents.