server: {
    mandatory: {
        Identify: typeof BaseIdentifyServer;
        OnOff: .;
        Thermostat: typeof ThermostatServer;
    };
    optional: {
        FanControl: typeof FanControlServer;
        Groups: typeof GroupsServer;
        RelativeHumidityMeasurement: typeof RelativeHumidityMeasurementServer;
        ScenesManagement: typeof ScenesManagementServer;
        TemperatureMeasurement: typeof TemperatureMeasurementServer;
        ThermostatUserInterfaceConfiguration: typeof ThermostatUserInterfaceConfigurationServer;
    };
}

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