/**
 * @module lib/index
 * @description Core functionality for retrieving and validating environment variables from different sources.
 * This module provides the internal implementation for the public API.
 */
import { type z } from "zod";
import { type EnvZ } from "../types/public.js";
export declare const dotenvValuesAtKeyName: "z.serverOnly";
/**
 * Retrieves, validates and transforms server-side environment variables based on the provided configuration.
 *
 * @template T - Type extending EnvZ (a record of environment variable entries with their validation schemas)
 * @param {Record<string, any>} importMetaEnv - expects "import.meta.env" here
 * @param {T} envSchema - Configuration object defining environment variables and their validation schemas
 * @returns {Object} An object containing all validated and transformed environment variables
 * @throws {Error} When environment variables fail validation against their schemas
 *
 * @example
 * ```ts
 * import { getEnvZ } from 'vike-envz';
 * import { z } from 'zod';
 *
 * const env = getEnvZ(import.meta.env, {
 *   PORT: [z.string().transform(Number), 'process'],
 *   API_KEY: [z.string().min(1)]
 * });
 *
 * // env.PORT is now a validated number
 * // env.API_KEY is a validated non-empty string
 * ```
 */
export declare const parseEnvZ: <T extends EnvZ>(importMetaEnv: Record<string, any>, envSchema: T) => { [K in keyof T]: z.infer<T[K][0]>; };