/** @module lens-functions.ts */
export declare const DELETE: unique symbol;
export declare const UNCHANGED: unique symbol;
export declare const _lens: (path: any[], fn: any, defaultValue: any, source: any, level?: number) => any;
export declare function lens<L, K1 extends keyof L, D extends L[K1], A>(path: [K1], fn: (pathData: D) => A, defaultValue: A, source: L): L;
export declare function lens<L, K1 extends keyof L, K2 extends keyof L[K1], D extends L[K1][K2], A>(path: [K1, K2], fn: (pathData: D) => A, defaultValue: A, source: L): L;
export declare function lens<L, K1 extends keyof L, K2 extends keyof L[K1], K3 extends keyof L[K1][K2], D extends L[K1][K2][K3], A>(path: [K1, K2, K3], fn: (pathData: D) => A, defaultValue: A, source: L): L;
export declare function lens<L, K1 extends keyof L, K2 extends keyof L[K1], K3 extends keyof L[K1][K2], K4 extends keyof L[K1][K2][K3], D extends L[K1][K2][K3][K4], A>(path: [K1, K2, K3, K4], fn: (pathData: D) => A, defaultValue: A, source: L): L;
export declare function lens<L, K1 extends keyof L, K2 extends keyof L[K1], K3 extends keyof L[K1][K2], K4 extends keyof L[K1][K2][K3], K5 extends keyof L[K1][K2][K3][K4], D extends L[K1][K2][K3][K4][K5], A>(path: [K1, K2, K3, K4, K5], fn: (pathData: D) => A, defaultValue: A, source: L): L;
export declare function lens<L, K1 extends keyof L, K2 extends keyof L[K1], K3 extends keyof L[K1][K2], K4 extends keyof L[K1][K2][K3], K5 extends keyof L[K1][K2][K3][K4], K6 extends keyof L[K1][K2][K3][K4][K5], D extends L[K1][K2][K3][K4][K5][K6], A>(path: [K1, K2, K3, K4, K5, K6], fn: (pathData: D) => A, defaultValue: A, source: L): L;
export declare function lens<L, K1 extends keyof L, K2 extends keyof L[K1], K3 extends keyof L[K1][K2], K4 extends keyof L[K1][K2][K3], K5 extends keyof L[K1][K2][K3][K4], K6 extends keyof L[K1][K2][K3][K4][K5], K7 extends keyof L[K1][K2][K3][K4][K5][K6], D extends L[K1][K2][K3][K4][K5][K6][K7], A>(path: [K1, K2, K3, K4, K5, K6, K7], fn: (pathData: D) => A, defaultValue: A, source: L): L;
export declare function lens<L, K1 extends keyof L, K2 extends keyof L[K1], K3 extends keyof L[K1][K2], K4 extends keyof L[K1][K2][K3], K5 extends keyof L[K1][K2][K3][K4], K6 extends keyof L[K1][K2][K3][K4][K5], K7 extends keyof L[K1][K2][K3][K4][K5][K6], K8 extends keyof L[K1][K2][K3][K4][K5][K6][K7], D extends L[K1][K2][K3][K4][K5][K6][K7][K8], A>(path: [K1, K2, K3, K4, K5, K6, K7, K8], fn: (pathData: D) => A, defaultValue: A, source: L): L;
export declare function lens<L, K1 extends keyof L, K2 extends keyof L[K1], K3 extends keyof L[K1][K2], K4 extends keyof L[K1][K2][K3], K5 extends keyof L[K1][K2][K3][K4], K6 extends keyof L[K1][K2][K3][K4][K5], K7 extends keyof L[K1][K2][K3][K4][K5][K6], K8 extends keyof L[K1][K2][K3][K4][K5][K6][K7], K9 extends keyof L[K1][K2][K3][K4][K5][K6][K7][K8], D extends L[K1][K2][K3][K4][K5][K6][K7][K8][K9], A>(path: [K1, K2, K3, K4, K5, K6, K7, K8, K9], fn: (pathData: D) => A, defaultValue: A, source: L): L;
export declare function lens<L, K1 extends keyof L, K2 extends keyof L[K1], K3 extends keyof L[K1][K2], K4 extends keyof L[K1][K2][K3], K5 extends keyof L[K1][K2][K3][K4], K6 extends keyof L[K1][K2][K3][K4][K5], K7 extends keyof L[K1][K2][K3][K4][K5][K6], K8 extends keyof L[K1][K2][K3][K4][K5][K6][K7], K9 extends keyof L[K1][K2][K3][K4][K5][K6][K7][K8], K10 extends keyof L[K1][K2][K3][K4][K5][K6][K7][K8][K9], D extends L[K1][K2][K3][K4][K5][K6][K7][K8][K9][K10], A>(path: [K1, K2, K3, K4, K5, K6, K7, K8, K9, K10], fn: (pathData: D) => A, defaultValue: A, source: L): L;
export declare function lens<P, PK extends keyof P, D, A, L>(path: P[], fn: (pathData: D) => A, defaultValue: A): (source: L) => L;
export declare function lens<P, PK extends keyof P, D, A, L>(path: P[], fn: (pathData: D) => A): (defaultValue: A) => (source: L) => L;
export declare function lens<P, PK extends keyof P, D, A, L>(path: P[]): <B extends A>(fn: (pathData: D) => B) => (defaultValue: B) => (source: L) => L;