import { CreateSignalOptions, WritableSignal } from '@angular/core';
import { WritableSygnal } from '../sygnals/sygnal';
interface WithToggle {
    /**
     * Toggle the boolean value of the signal
     */
    toggle(): void;
}
export declare function withToggle<T>(original: WritableSygnal<T>): WritableSygnal<boolean> & WithToggle;
export declare function withToggle<T>(original: WritableSignal<T>): WritableSignal<boolean> & WithToggle;
export declare const toggle: (initialValue: boolean, options?: CreateSignalOptions<boolean>) => WritableSygnal<boolean> & WithToggle;
export {};