/// <reference types="@virgilsecurity/core-foundation" />
import { IGroupSessionMessageInfo } from '../types';
export declare function parseGroupSessionMessage(messageData: Uint8Array): IGroupSessionMessageInfo;
export declare function getEpochNumberFromEpochMessage(epochMessageData: Uint8Array): number;
export declare function createLowLevelSession(epochMessages: Uint8Array[]): FoundationModules.GroupSession;
export declare function computeSessionId(groupId: Uint8Array): Uint8Array;
export declare function createInitialEpoch(sessionId: Uint8Array): FoundationModules.GroupSessionMessage;