export const MAPEO_RPC_ID: "@@mapeo-rpc";
export const MANAGER_CHANNEL_ID: "@@manager";
/**
 * @typedef {Object} Events
 * @property {(message: any) => void} message
 */
/**
 * Node's built-in types for MessagePort are misleading so we opt for this limited type definition
 * that fits our usage and works in both Node and browser contexts
 * @typedef {Pick<EventTarget, 'addEventListener' | 'removeEventListener'> & { postMessage: (message: any) => void }} MessagePortLike
 */
export class SubChannel extends EventEmitter<string | symbol, any> {
    /**
     * @param {MessagePortLike} messagePort Parent channel to add namespace to
     * @param {string} id ID for the subchannel
     */
    constructor(messagePort: MessagePortLike, id: string);
    get id(): string;
    /**
     * Send messages with the subchannel's ID
     * @param {any} message
     */
    postMessage(message: any): void;
    start(): void;
    close(): void;
    #private;
}
export type Events = {
    message: (message: any) => void;
};
/**
 * Node's built-in types for MessagePort are misleading so we opt for this limited type definition
 * that fits our usage and works in both Node and browser contexts
 */
export type MessagePortLike = Pick<EventTarget, "addEventListener" | "removeEventListener"> & {
    postMessage: (message: any) => void;
};
import { EventEmitter } from 'eventemitter3';