import { DefaultCall } from "../calling";
import { PushType } from "./PushType";
export declare function getFlags(call: DefaultCall): number;
export declare function generatePushPayload(call: DefaultCall): never;
export declare class PushPayload {
    version: number;
    type: PushType;
    sessionId: string;
    timestamp: Date;
    userId: string;
    flags: number;
    domain: string;
    publicHeaders?: Record<string, string> | undefined;
    private supportedVersions;
    constructor(version: number, type: PushType, sessionId: string, timestamp: Date, userId: string, flags: number, domain: string, publicHeaders?: Record<string, string> | undefined);
    static isValid(json: any): boolean;
    static tryDecode(payload: string, onMessage: (message: PushPayload) => void): boolean;
    tryEncode(onPayload: (payload: string) => void): boolean;
    private getPayload;
    private getPayloadV4;
}