/**
 * Beatoven.ai Music Generation Handler
 *
 * Async track-composition API. Submits a compose-track request, polls the
 * task status, and downloads the resulting audio.
 *
 * @module music/providers/BeatovenMusic
 * @see https://www.beatoven.ai/api-docs
 */
import type { MusicAudioFormat, MusicHandler, MusicOptions, MusicResult } from "../../types/index.js";
/**
 * Beatoven.ai Music Generation Handler.
 *
 * Beatoven is a royalty-free music generation API tuned for
 * background / cinematic / brand music. Tracks are composed
 * asynchronously: submit a prompt, poll the task, then download.
 */
export declare class BeatovenMusic implements MusicHandler {
    readonly maxDurationSeconds = 300;
    readonly supportedFormats: readonly MusicAudioFormat[];
    readonly supportedGenres: readonly string[];
    private readonly apiKey;
    private readonly baseUrl;
    constructor(apiKey?: string);
    isConfigured(): boolean;
    generate(options: MusicOptions): Promise<MusicResult>;
    private submitCompose;
    private pollUntilComposed;
    private fetchTaskStatus;
    private downloadTrack;
}