import type { AbortSignalLike } from "@azure/abort-controller";
import type { WebPubSubResult } from "./models/index.js";
export interface AckRegistration {
    ackId: number;
    wait(abortSignal?: AbortSignalLike): Promise<WebPubSubResult>;
}
/**
 * Manages ack id generation and pending ack entries.
 */
export declare class AckManager {
    private readonly _ackEntries;
    private _ackId;
    constructor(initialAckId?: number);
    registerAck(ackId?: number): AckRegistration;
    resolveAck(ackId: number, result: WebPubSubResult): boolean;
    rejectAck(ackId: number, reason: unknown): boolean;
    discard(ackId: number): void;
    rejectAll(createReason: (ackId: number) => unknown): void;
    private _waitForEntry;
    private _generateAckId;
}
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