import { IndexPath } from './indexPath.js';
import { BaseOptions } from './options.js';
export type MapOptions<T, U> = BaseOptions<T> & {
    /**
     * Transform the node into a different value.
     */
    transform: (node: T, transformedChildren: U[], indexPath: IndexPath) => U;
};
/**
 * Map each node into a new node.
 *
 * The shape of the tree remains the same. You can omit nodes from the tree by
 * filtering them out of the `transformedChildren` argument. The root can't be omitted.
 */
export declare function map<T, U>(node: T, options: MapOptions<T, U>): U;
export type FlatMapOptions<T, U> = BaseOptions<T> & {
    /**
     * Transform the node into an array of new nodes.
     */
    transform: (node: T, transformedChildren: U[], indexPath: IndexPath) => U[];
};
/**
 * Map each node into an array of new nodes.
 *
 * You can omit nodes from the tree by returning an empty array from the `transform` function.
 * The first element of the returned top-level array will be the new root.
 */
export declare function flatMap<T, U>(node: T, options: FlatMapOptions<T, U>): U;