export declare const DEFAULT_BRIDGE_PORT = 31973;
export interface TabRequest {
    url: string;
    token: string;
    createdAt: number;
}
export interface TabCompletion {
    token: string;
    tabId?: number;
    windowId?: number;
    error?: string;
    completedAt: number;
}
export interface TabBridgeOptions {
    port?: number;
    requestTtlMs?: number;
    completionTtlMs?: number;
}
export declare class TabBridge {
    private readonly options;
    private server;
    private pending;
    private completed;
    private readonly requestTtlMs;
    private readonly completionTtlMs;
    private sweepTimer;
    constructor(options?: TabBridgeOptions);
    port(): number | undefined;
    baseUrl(): string;
    start(): Promise<string>;
    stop(): Promise<void>;
    requestTab(url: string, token?: string): string;
    waitForTab(token: string, options?: {
        timeoutMs?: number;
        pollMs?: number;
        signal?: AbortSignal;
    }): Promise<TabCompletion>;
    ownedTabIds(): number[];
    pendingCount(): number;
    private sweep;
    private json;
    private handle;
}
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