/** @import {MsgRequestObj, Result, Metadata, MsgId} from './lib/types.js'*/
/** @typedef {import('./lib/types.js').MsgRequest} MsgRequest */
/** @typedef {import('./lib/types.js').MsgResponse} MsgResponse */
/** @typedef {import('./lib/types.js').MsgOn} MsgOn */
/** @typedef {import('./lib/types.js').MsgOff} MsgOff */
/** @typedef {import('./lib/types.js').MsgEmit} MsgEmit */
/** @typedef {import('./lib/types.js').Message} Message */
/** @typedef {import('./lib/types.js').NonEmptyArray<string>} NonEmptyStringArray */
/** @typedef {import('./lib/types.js').MessagePortLike} MessagePortLike */
/** @typedef {import('worker_threads').MessagePort} MessagePortNode */
/**
 * @public
 * Create an RPC server that will receive messages via `receiver`, call the
 * matching method on `handler`, and send the reply via `send`.
 *
 * @param {{[method: string]: any}} handler Any method called on the client
 * object will be called on this object. Methods can return a value, a Promise,
 * or a ReadableStream. Your transport stream must be able to encode/decode any
 * values that your handler returns
 * @param {MessagePort | MessagePortLike | MessagePortNode | import('stream').Duplex} channel A Duplex Stream with objectMode=true or a MessagePort-like object that must implement an `.on('message')` event handler and a `.postMessage()` method.
 * @param {object} [options] Options object
 * @param {false | Omit<import('pino').BaseLogger, 'level' | 'silent'>} [options.logger = false] options.logger Set to `false` to disable logging, or pass a pino logger instance to enable logging
 * @param {(request: MsgRequestObj, next: (request: Omit<MsgRequestObj, 'metadata'>) => Result) => void} [options.onRequestHook] Optional hook to observe and modify a request and its metadata, and to await the response.
 * @returns {{ close: () => void }} An object with a single method `close()` that will stop the server listening to and sending any more messages
 */
export function createServer(handler: {
    [method: string]: any;
}, channel: MessagePort | MessagePortLike | MessagePortNode | import("stream").Duplex, { logger, onRequestHook }?: {
    logger?: false | Omit<import("pino").BaseLogger, "level" | "silent"> | undefined;
    onRequestHook?: ((request: MsgRequestObj, next: (request: Omit<MsgRequestObj, "metadata">) => Result) => void) | undefined;
}): {
    close: () => void;
};
export type MsgRequest = import("./lib/types.js").MsgRequest;
export type MsgResponse = import("./lib/types.js").MsgResponse;
export type MsgOn = import("./lib/types.js").MsgOn;
export type MsgOff = import("./lib/types.js").MsgOff;
export type MsgEmit = import("./lib/types.js").MsgEmit;
export type Message = import("./lib/types.js").Message;
export type NonEmptyStringArray = import("./lib/types.js").NonEmptyArray<string>;
export type MessagePortLike = import("./lib/types.js").MessagePortLike;
export type MessagePortNode = import("worker_threads").MessagePort;
import type { MsgRequestObj } from './lib/types.js';
import type { Result } from './lib/types.js';