server: {
    mandatory: {
        FanControl: typeof FanControlServer;
        Identify: typeof BaseIdentifyServer;
    };
    optional: {
        ActivatedCarbonFilterMonitoring: typeof ActivatedCarbonFilterMonitoringServer;
        Groups: typeof GroupsServer;
        HepaFilterMonitoring: typeof HepaFilterMonitoringServer;
    };
}

An implementation for each server cluster supported by the endpoint per the Matter specification.