import { Parser } from '../types/index.js';
/**
 * Reads and parses env files. A variable defined in more than one file gets
 * its value from the first file that defines it. The variables of the first
 * file come first, so that chains of references are expanded in file order.
 */
export declare function readEnvFiles(envFilePaths: string[], parser: Parser): Record<string, any>;