import { v4 } from '@lukeed/uuid';
export declare enum PayloadType {
    METHOD = "method",
    RESULT = "result",
    EVENT = "event",
    ERROR = "error",
    SETUP = "setup",
    HEARTBEAT = "heartbeat"
}
export declare namespace Presentation {
    const uuid: typeof v4;
    type Payload = {
        type: PayloadType;
        [key: string]: any;
    };
    function decode<T = Payload>(payload: string | {
        data: string;
    }): T;
    function encode<T = Payload>(payload: T): string;
}