export declare const LAUNCHER_PROTOCOL_VERSION = 2;
export declare function getLauncherDirectory(): string;
export declare function getStableLauncherPath(): string;
export declare function getLauncherProtocolPath(): string;
export declare function getPackagedLauncherPath(): string;
export declare function installStableLauncher(sourcePath?: string): string;
export declare function validateStableLauncher(): string;
export declare function getAdoptedLauncherPath(): string | null;
export declare function runStableLauncher(launchSpecPath: string, launcherPath?: string): void;
export declare function spawnStableLauncher(launchSpecPath: string, options?: {
    upgradeJobId?: string;
    launcherPath?: string;
    onSpawn?: (pid: number) => void;
    recoveryOwner?: 'repair' | 'worker';
}): number;