type SignalLinkOptions<THandler extends (...args: any[]) => any> = {
    order: number;
    isPublic: boolean;
    onUnlink(): void;
    callback?: THandler;
};
/**
 * SignalLink implements a doubly-linked ring with nodes containing the signal handlers.
 * @private
 */
export declare class SignalLink<THandler extends (...args: any[]) => any> {
    private enabled;
    private readonly order;
    newLink: boolean;
    next: SignalLink<THandler>;
    prev: SignalLink<THandler>;
    callback?: THandler;
    readonly isPublic: boolean;
    private onUnlink;
    constructor(prev: SignalLink<THandler> | null, next: SignalLink<THandler> | null, options: SignalLinkOptions<THandler>);
    isEnabled(): boolean;
    setEnabled(flag: boolean): void;
    unlink(): boolean;
    insert(options: SignalLinkOptions<THandler>): SignalLink<THandler>;
}
export {};