import type { InstallerOptions } from './types.js';
/**
 * Compatibility wrapper for legacy call sites.
 *
 * Interaction mode now owns prompt/browser behavior. Keep this helper while
 * call sites migrate, but do not reimplement env/TTY detection here.
 */
export declare function isNonInteractiveEnvironment(): boolean;
export declare function readEnvironment(): Record<string, unknown>;
export declare function detectEnvVarPrefix(options: InstallerOptions): Promise<string>;