import type { PackageManagerId } from '../shared/package-managers.js';
import type { InitFilePlan } from './cli-init-types.js';
export interface YarnPnpNodeModulesConfig {
    filePlan: InitFilePlan;
    path: string;
    source: string;
}
/**
 * Plan the minimal Yarn configuration change that makes generated postinstall
 * compatibility hooks safe for an already-installed Plug'n'Play project.
 *
 * Yarn PnP resolves package files from read-only zip archives. The generated
 * @ttsc/lint hook deliberately patches a pinned formatter source, so retrofit
 * projects switch observed and implicit Yarn Berry PnP installations to
 * Yarn's mutable node-modules linker before the next install runs that hook.
 */
export declare function getYarnPnpNodeModulesConfig(projectDir: string, packageManager: PackageManagerId, plannedPackageManager?: string): YarnPnpNodeModulesConfig | undefined;