export declare function onFlowStart(flowId: string): void;
/**
 * Compare each owner's count at flow-start vs now. Owners that grew by
 * more than `leakItemThreshold` and didn't shrink are flagged. Returns
 * the list of flagged owner ids (also useful for tests).
 */
export declare function onFlowSettled(flowId: string): string[];
export declare function checkStaleGeneration(args: {
    logicalId: string;
    instanceId: string;
    generation: number;
    retainedBytes: number;
}): boolean;