import type { Logger } from '../components/Logger.ts';
interface Env {
    get(key: string): string;
}
/** isHdbInstalled checks for a valid installation of Harper based on the env
 *  arg's settings path and any boot props file it can find and returns true
 *  if an installation is found; false otherwise.
 */
export declare function isHdbInstalled(env: Env, logger: Pick<Logger, 'error'>): boolean;
export {};
