/**
  Kitten critical assertions.

  Copyright ⓒ 2022-present, Aral Balkan (https://ar.al)
  Small Technology Foundation (https://small-tech.org).

  License: AGPL version 3.0.
*/
declare const functions: {
    commandExists: typeof commandExists;
    systemctl: typeof systemctl;
    journalctl: typeof journalctl;
    serviceNotActive: typeof serviceNotActive;
    portsAreFree: typeof portsAreFree;
    canEnableService: typeof canEnableService;
};
export default functions;
/**
  Does the command with the passed name exist?

  @param {string} command
*/
export declare function commandExists(command: string): boolean;
export declare function systemctl(): void;
export declare function journalctl(): void;
export declare function portsAreFree(): Promise<void>;
export declare function canEnableService(): Promise<void>;
export declare function serviceNotActive(): void;