/**
 * Allows async process to be notified by another process.
 */
export declare class Notifier {
    private error;
    private promise;
    private resolve;
    private reject;
    /**
     * Creates a new notifier.
     *
     * @param signal - Optional abort signal to connect to. When signal reports an abort then the notifier is notified.
     */
    constructor(signal?: AbortSignal);
    /**
     * Notifies waiting processes. This resolves the promise returned by {@link wait} method.
     */
    notify(): void;
    /**
     * Aborts the notifier. This rejects the promise returned by the {@link wait} method.
     *
     * @param error - The error with which to abort the notifier.
     */
    abort(error: Error): void;
    private reset;
    /**
     * Waits until some other process calls the {@link notify} or {@link abort} method.
     *
     * @returns Promise resolved with {@link notify} was called or rejected when {@link abort} has been called.
     */
    wait(): Promise<void>;
}