import type { ReactiveController, ReactiveControllerHost } from 'lit';
import type { SupportedLang, VoiceSettings, VoiceEngineState, VoiceInfo, EngineCapabilities } from '@ariontalk/core';
export declare class VoiceSessionController implements ReactiveController {
    private host;
    private engine;
    get state(): VoiceEngineState;
    get timerDisplay(): string;
    constructor(host: ReactiveControllerHost);
    get capabilities(): EngineCapabilities;
    setEngine(type: 'local' | 'gemini', config?: any): Promise<void>;
    hostConnected(): void;
    hostDisconnected(): void;
    startSession(lang: SupportedLang): Promise<void>;
    endSession(): void;
    setMuted(muted: boolean): void;
    switchLanguage(lang: SupportedLang): void;
    applyVoiceSettings(settings: VoiceSettings): void;
    getVoiceOverrides(): VoiceSettings | null;
    getVoices(): VoiceInfo[];
}