/**
 * Browser-friendly packages only.
 * (No Node.js built-ins like fs, path, dotenv, etc.)
 * Works in both Node.js and modern browsers.
 */
import { BeatSessionType, MulmoStudioContext, SessionProgressCallback, SessionType, MulmoBeat, SpeechOptions } from "../types/index.js";
import { provider2TTSAgent } from "../types/provider2agent.js";
export declare const addSessionProgressCallback: (cb: SessionProgressCallback) => void;
export declare const removeSessionProgressCallback: (cb: SessionProgressCallback) => void;
export declare const MulmoStudioContextMethods: {
    getAudioDirPath(context: MulmoStudioContext): string;
    getImageDirPath(context: MulmoStudioContext): string;
    getImageProjectDirPath(context: MulmoStudioContext): string;
    getOutDirPath(context: MulmoStudioContext): string;
    getFileName(context: MulmoStudioContext): string;
    getCaption(context: MulmoStudioContext): string | undefined;
    setSessionState(context: MulmoStudioContext, sessionType: SessionType, value: boolean, result?: boolean): void;
    setBeatSessionState(context: MulmoStudioContext, sessionType: BeatSessionType | undefined, index: number, id: string | undefined, value: boolean): void;
    needTranslate(context: MulmoStudioContext, includeCaption?: boolean): boolean | "" | undefined;
    getIntroPadding(context: MulmoStudioContext): number;
    getAudioParam(context: MulmoStudioContext, beat: MulmoBeat, lang?: string): {
        provider: keyof typeof provider2TTSAgent;
        voiceId: string;
        model?: string;
        speechOptions: SpeechOptions;
    };
};