export interface BundleContents {
    /** Raw bytes for a bundle-relative path, or `undefined` if not present. */
    file(path: string): Promise<Uint8Array | undefined>;
}
/**
 * Open a bundle at `abs` (an absolute path). A `.zip` is unzipped in memory;
 * anything else is treated as a directory.
 *
 * @throws {@link BundleNotFoundError} if the path does not exist or a `.zip`
 *   cannot be read/inflated.
 */
export declare function openBundle(abs: string, ref: string): Promise<BundleContents>;
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