import { type IPackage } from "../../package/package.js";
import { type IReleaseData } from "../../attachments/ReleaseAttachment.js";
type ReleaseAttachments = {
    releaseinfo: IReleaseData;
};
type ReleasePackage = IPackage<ReleaseAttachments>;
export declare class ReleaseUtilities {
    private _p;
    constructor(_p: ReleasePackage);
    get publishDate(): Date | undefined;
    get newestPackage(): ReleasePackage | undefined;
    get oldestPackage(): ReleasePackage | undefined;
    private _getPublishDate;
    private _getNewestPackage;
    private _getOldestPackage;
}
export {};