export interface ProtocolPacketBase {
    version: number;
    minimumVersion?: number;
    type: string;
    payload?: any;
}
export interface ClassicProtocolOffer extends ProtocolPacketBase {
    type: 'classic';
}
export interface RTCProtocolOffer extends ProtocolPacketBase {
    type: 'rtc';
    payload: {
        offer: RTCSessionDescriptionInit;
        rtcConnectionId: string;
    };
}
export type ProtocolOffer = ClassicProtocolOffer | RTCProtocolOffer;
/**
 * Protocol values for determining channel messaging strategy.
 */
export type MessagingProtocols = ProtocolOffer['type'];
export type LocalSupportedProtocol = {
    type: MessagingProtocols;
    minimumVersion: number;
    version: number;
};
export interface ExternalClientOffer {
    maxProtocols: number;
    supportedProtocols: ProtocolPacketBase[];
}
export interface ClientOffer {
    supportedProtocols: ProtocolOffer[];
    maxProtocols: number;
}
export interface ClassicProtocolAnswer extends ProtocolPacketBase {
    type: 'classic';
}
export interface RTCProtocolAnswer extends ProtocolPacketBase {
    type: 'rtc';
    payload: {
        answer: RTCSessionDescriptionInit;
    };
}
export type ProtocolAnswer = ClassicProtocolAnswer | RTCProtocolAnswer;
export interface ClientAnswer {
    supportedProtocols: ProtocolAnswer[];
}