import { type DrizzleExecutor } from "../drizzle.js";
/**
 * Upserts syncConsumers only after the active user and serverSyncState generation and recoverable range are validated.
 * The max-sequence conflict update prevents a stale device acknowledgement from moving its durable cursor backward.
 */
export declare function syncConsumerAcknowledge(executor: DrizzleExecutor, input: {
    userId: string;
    deviceId: string;
    generation: string;
    sequence: number;
}): Promise<void>;
//# sourceMappingURL=syncConsumerAcknowledge.d.ts.map