export declare function isVersionCached(version: string): boolean;
export declare function listCachedVersions(): string[];
export declare function cleanVersionCache(version?: string): void;
export declare function ensureCachedVersion(version: string): Promise<string>;
export declare function downloadVersion(version: string): Promise<string>;
export declare function fetchRemoteVersions(): Promise<string[]>;
export declare function findJsRuntime(): string;
