Interface IMessageAddOn

interface IMessageAddOn {
    addOnContextInfo?: IMessageAddOnContextInfo | null;
    legacyMessage?: ILegacyMessage | null;
    messageAddOn?: IMessage | null;
    messageAddOnKey?: proto.IMessageKey | null;
    messageAddOnType?: MessageAddOnType | null;
    senderTimestampMs?: number | Long | null;
    serverTimestampMs?: number | Long | null;
    status?: proto.WebMessageInfo.Status | null;
}