Allows registering CallbackEventHandlers with nullptr for the callbacks. If the event state callback is null-ed, then events will be reported as UNKNOWN. If the event report is null-ed, then nothing will happen when the event is consumed (helpful for a consumer only).
Allows registering CallbackEventHandlers with nullptr for the callbacks.
If the event state callback is null-ed, then events will be reported as UNKNOWN.
If the event report is null-ed, then nothing will happen when the event is consumed (helpful for a consumer only).

bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn