Maximum service time for response messages (in microseconds).

C# |
public long responseMessagesMaximumServiceTime()

Maximum service time for response messages (in microseconds). This is the
high-water mark (i.e., the longest so far) for response message service
durations measured from the point of de-queuement until the application has
finished servicing the message. Configuration option
queue_service_time_enabled must be activated.