client: {
    mandatory: {};
    optional: {
        FlowMeasurement: Type<FlowMeasurement.Cluster, typeof ClusterBehavior, {
            components: never[];
        }>;
        OccupancySensing: Type<OccupancySensing.Cluster, typeof ClusterBehavior, {
            components: never[];
        }>;
        PressureMeasurement: Type<PressureMeasurement.Cluster, typeof ClusterBehavior, {
            components: never[];
        }>;
        TemperatureMeasurement: Type<TemperatureMeasurement.Cluster, typeof ClusterBehavior, {
            components: never[];
        }>;
    };
} = ...

A definition for each client cluster supported by the endpoint per the Matter specification.