/** One part an app declares. */
export interface Part {
    /** The package name inside the part: what the app imports, and what it is installed as. */
    package: string;
    /** Where it is, resolved against the URL the app was fetched from. */
    url: string;
    /** Its whole-file hash, `<alg>:<hex>`. */
    hash: string;
}
/** What a pin looks like: `<alg>:<hex>`. */
export declare const PIN_PATTERN = "^[a-z0-9-]+:[0-9a-f]{32,}$";
/**
 * The parts a package.json declares under `bundle.parts`, checked; or
 * undefined when it declares none. A declaration that does not hold together
 * is an error, never a quietly shorter list.
 */
export declare function readParts(manifest: unknown, where: string): Part[] | undefined;
/** The pins parts make: package name to hash. */
export declare function pinsOf(parts: Part[]): Record<string, string>;
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