Interface IMessageService

interface IMessageService {
    beginTyping(): Promise<void>;
    endTyping(): Promise<void>;
    off(
        event: "message" | "naf" | "nafr",
        handler: (data: unknown) => void,
    ): void;
    on(
        event: "message" | "naf" | "nafr",
        handler: (data: unknown) => void,
    ): void;
    sendMessage(message: string): Promise<void>;
    sendNAF(data: NAFMessage): Promise<void>;
    sendNAFR(data: NAFMessage): Promise<void>;
}