import { type Tree } from '@nx/devkit';
type NextDependenciesVersions = {
    next: string;
};
export declare function getNextDependenciesVersionsToInstall(tree: Tree, isReact18?: boolean): Promise<NextDependenciesVersions>;
export declare function isNext14(tree: Tree): Promise<boolean>;
export declare function getInstalledNextVersion(tree: Tree): string;
export declare function getInstalledNextVersionFromGraph(): Promise<string>;
export {};