export interface NpmPackageDist {
    tarball: string;
    shasum?: string;
    integrity?: string;
}
export interface NpmPackageMetadata {
    name: string;
    "dist-tags"?: Record<string, string>;
    versions?: Record<string, {
        name: string;
        version: string;
        dist?: NpmPackageDist;
    }>;
}
export interface CachedNpmPackage {
    packageName: string;
    version: string;
    packageDir: string;
    tarballPath: string;
    dist: NpmPackageDist;
}
export interface FetchNpmPackageOptions {
    refresh?: boolean;
    ttlMs?: number;
}
export declare function fetchNpmPackageToCache(packageName: string, cwd: string, versionRange?: string, options?: FetchNpmPackageOptions): Promise<CachedNpmPackage>;