export type Path = Array<string | number>;
/** Depth-first pre-order walk over any JS value. */
export declare function walkValue(value: unknown, fn: (value: unknown, path: Path) => void, path?: Path): void;
/** Deep map that returns a transformed copy. Mapper can replace any node. */
export declare function mapValue<T>(value: T, fn: (value: unknown, path: Path) => unknown, path?: Path): T;
export type KeyMapper = (key: string, path: Path) => string;
/** Deep map that can also transform object keys. */
export declare function mapValueWithKeys<T>(value: T, mapNode: (value: unknown, path: Path) => unknown, mapKey?: KeyMapper, path?: Path): T;
//# sourceMappingURL=walk.d.ts.map