import { PackageRootService } from './package-root.service.js';
export declare class PackageRootCacheService {
    #private;
    constructor(packageRootFinder: PackageRootService);
    determineWorkerRoot(workspaceFolder: string, codeFilename?: string, stylelintPath?: string): Promise<string>;
    invalidateForFile(filePath: string | undefined): void;
    clearForWorkspace(workspaceFolder: string): void;
    clear(): void;
}