import type { ProviderAbortReason } from '../../abort-reason.js';
export type AbortReason = ProviderAbortReason;
export declare const CLOSED_SENTINEL: "__closed__";
export type ClosedSentinel = typeof CLOSED_SENTINEL;
export declare class AbortCoordinator {
    private current;
    private pendingReason;
    readonly closedPromise: Promise<ClosedSentinel>;
    private closeResolve;
    constructor();
    begin(): AbortController;
    clear(controller: AbortController): void;
    requestAbort(reason: AbortReason): void;
    isIdle(): boolean;
    markClosed(): void;
}