Man pages matching name wsnotification::interfaces::wsbasenotificationsender::notificationproducerport in section 3pm:

WSNotification::Interfaces::WSBaseNotificationSender::NotificationProducerPort.3pm.en	debian 11 / zoneminder
WSNotification::Interfaces::WSBaseNotificationSender::NotificationProducerPort.3pm.en	debian 12 / zoneminder