import { UpdateJsonFileOptions } from './json-file';
import { NxJson } from './nx-json';
import { TreeLike } from './tree';
/**
 * Retrieves the `nx.json` configuration file from a given project tree.
 *
 * This function specifically fetches the `nx.json` file, which is a configuration file used in Nx workspaces.
 * It utilizes a generic helper function `GetJsonFile` to read the JSON file from the provided tree structure.
 *
 * @param tree - The project tree structure from which to retrieve the `nx.json` file. This tree must conform to the `TreeLike` interface.
 * @returns An instance of `NxJson` containing the parsed contents of the `nx.json` file.
 * @template Tree - A generic type that extends `TreeLike`, representing the structure of the project tree.
 */
export declare function GetNxJson<Tree extends TreeLike>(tree: Tree): NxJson;
export type UpdateNxJsonOptions = UpdateJsonFileOptions;
export declare function UpdateNxJson<Tree extends TreeLike>(tree: Tree, updaterOrJsonFile: NxJson | ((nxJson: NxJson) => void), options?: UpdateNxJsonOptions): void;
export declare function UpdateNxJson<Tree extends TreeLike>(tree: Tree, updaterOrJsonFile: NxJson | ((nxJson: NxJson) => Promise<void>), options?: UpdateNxJsonOptions): Promise<void>;