interface PostMessageTarget {
    postMessage(...args: any[]): void;
}
interface EventListenerTarget {
    addEventListener(type: string, handler: (event: any) => void): void;
    removeEventListener(type: string, handler: (event: any) => void): void;
}
export declare class MessagePortTarget {
    sender: PostMessageTarget[];
    receiver: EventListenerTarget[];
    constructor(sender?: PostMessageTarget | PostMessageTarget[] | null, receiver?: EventListenerTarget | EventListenerTarget[] | null);
    postMessage(...args: any[]): void;
    addEventListener(type: string, handler: (event: any) => void): void;
    removeEventListener(type: string, handler: (event: any) => void): void;
}
export default MessagePortTarget;