import { Readable, Unsubscriber } from "svelte/store";
export interface Derived<T> extends Readable<T> {
    derivedFrom: Array<Readable<any>>;
}
type Stores = Readable<any> | [Readable<any>, ...Array<Readable<any>>] | Array<Readable<any>>;
type StoresValues<T> = T extends Readable<infer U> ? U : {
    [K in keyof T]: T[K] extends Readable<infer U> ? U : never;
};
export declare function derived<S extends Stores, T>(stores: S, fn: (values: StoresValues<S>, set: (value: T) => void) => Unsubscriber | void, initial_value?: T): Derived<T>;
export declare function derived<S extends Stores, T>(stores: S, fn: (values: StoresValues<S>) => T, initial_value?: T): Derived<T>;
export declare function derived<S extends Stores, T>(stores: S, fn: (values: StoresValues<S>) => T): Derived<T>;
export {};
//# sourceMappingURL=derived.d.ts.map