import type { FrameBus } from "./frameBus.js";
export declare enum TurnState {
    IDLE = 0,
    USER_SPEAKING = 1,
    PROCESSING = 2,
    ASSISTANT_SPEAKING = 3
}
export declare class TurnManager {
    state: TurnState;
    constructor(bus: FrameBus);
    private onVadStart;
    private onVadStop;
    assistantSpeaking(): void;
    reset(): void;
}