import { ReactionOptions } from "fluidstate";
declare const PreactEffect: new (fn: () => void) => {
    _dispose(): void;
    _callback(): void;
};
declare const callbackPropertyName: "_callback";
/**
 * Extension of `@preact/signals-core` Effect in order to add
 * the ability to schedule effects. A variety of hacky deductions
 * are made in order to extend the preact's Effect class
 */
export declare class Effect extends PreactEffect {
    private options?;
    constructor(fn: () => void, options?: ReactionOptions);
    [callbackPropertyName](): void;
    stop(): void;
}
export {};