import { ValueOf } from '../common';
interface ILens<T> {
    get: (value: T) => ValueOf<T>;
    set: <V>(value: V) => void;
}
declare type IView = {
    <T>(lens: ILens<T>): ILens<T>['get'];
    <T, L, R>(lens: ILens<T>, object: L): R;
};
export declare const view: IView;
declare type ISet = {
    <T, V, O>(lens: ILens<T>): (value: V) => (object: O) => T;
    <T, V, O>(lens: ILens<T>, value: V): (object: O) => T;
    <T, V, O>(lens: ILens<T>, value: V, object: O): T;
};
export declare const set: ISet;
export declare const over: (...args: any[]) => any;
export declare const lensProp: (key: string) => ILens<{
    [x: string]: {};
}>;
export declare const lensPath: (key: string[]) => ILens<object>;
export {};