/**
 * Installation state utilities
 *
 * Functions for checking installation state that are used by both install.ts and uninstall.ts
 */
/**
 * Check if there's an existing installation
 * An installation exists if:
 * - Config file exists at <installDir>/.nori-config.json
 *
 * @param args - Configuration arguments
 * @param args.installDir - Installation directory
 *
 * @returns true if an installation exists, false otherwise
 */
export declare const hasExistingInstallation: (args: {
    installDir: string;
}) => boolean;
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