/**
  Kitten Package.
*/
import Version from './Version.ts';
export type RemoteVersionDetails = {
    versionStamp: number;
    gitHash: string;
    apiVersion: number;
    nodeVersion: string;
    exactVersion: string;
    buildDate: Date;
    releaseDate: Date;
    _buildDate: string;
    _releaseDate: string;
    upload: import('../types/index.ts').Upload;
};
/**
  Represents the currently-installed Kitten package.

  Provides information about and manages updates of the
  package by communicating with Kitten’s deployment site
  (https://kittens.small-web.org).

  _Note that this class does NOT manage automatic updates.
  For that, please see the AutomaticUpdates class._
*/
export default class KittenPackage {
    static instance: KittenPackage;
    currentVersion: Version;
    apiVersion: number;
    limitByApiVersion: boolean;
    versionCheckUrl: string;
    latestVersion: RemoteVersionDetails | undefined;
    compatibleVersion: RemoteVersionDetails | undefined;
    latestRecommendedVersion: RemoteVersionDetails | undefined;
    static getInstance(): KittenPackage;
    constructor();
    get hasCompatibleVersion(): boolean;
    get isLatestReleaseVersion(): boolean;
    get isMoreRecentThanReleaseVersion(): boolean;
    get canBeUpgraded(): boolean;
    /**
      Upgrades the Kitten package to the latest recommended version.
  
      Note that if you’re running a development version, this will actually result
      in a downgrade to the latest available published package. Make sure your
      interface detects this state and prompts before downgrading.
  
      @throws
    */
    upgrade(apiVersion?: number): void;
    /**
      Fetches the latest version information from kittens.small-web.org.
    */
    update(): Promise<void>;
}