/**
 * npm registry client — used as a fallback when Bundlephobia can't build a
 * package (React Native, Expo, native modules, type-only packages, etc.).
 *
 * Sizes here are install weight (tarball / unpacked on disk), not browser
 * bundle size. They still answer "how heavy is this dependency?" for any package.
 */
import type { PackageSize } from './bundlephobia.js';
export interface NpmFetchOptions {
    timeoutMs?: number;
}
/** Split `lodash@4.17.21` / `@scope/pkg@1.2.3` into name + optional version. */
export declare function parseSpec(spec: string): {
    name: string;
    version?: string;
};
/**
 * Fetch install-size metadata from the npm registry and map it into our
 * PackageSize shape. `size` ≈ unpacked on disk; `gzip` ≈ published tarball.
 */
export declare function fetchNpmInstallSize(spec: string, options?: NpmFetchOptions): Promise<PackageSize>;
//# sourceMappingURL=npm.d.ts.map