import { type AIMLAPIClient } from '../client';
/**
 * Base text-to-speech parameters
 */
export interface TextToSpeechParams {
    model: string;
    text?: string;
    script?: string;
}
/**
 * Unified Text-to-Speech create parameters interface
 * Following the same approach as images and speech-to-text resources
 */
export interface TextToSpeechCreateParams extends TextToSpeechParams {
    voice?: string;
    container?: string;
    encoding?: 'linear16' | 'mulaw' | 'alaw' | 'mp3' | 'opus' | 'flac' | 'aac';
    sample_rate?: string;
    apply_text_normalization?: 'auto' | 'on' | 'off';
    next_text?: string;
    previous_text?: string;
    output_format?: 'mp3_22050_32' | 'mp3_44100_32' | 'mp3_44100_64' | 'mp3_44100_96' | 'mp3_44100_128' | 'mp3_44100_192' | 'pcm_8000' | 'pcm_16000' | 'pcm_22000' | 'pcm_24000' | 'pcm_44100' | 'pcm_48000' | 'ulaw_8000' | 'alaw_8000' | 'opus_48000_32' | 'opus_48000_64' | 'opus_48000_96' | 'opus_48000_128' | 'opus_48000_192';
    voice_settings?: {
        stability?: number;
        use_speaker_boost?: boolean;
        similarity_boost?: number;
        style?: number;
        speed?: number;
    };
    seed?: number;
    format?: 'wav' | 'mp3';
    script?: string;
    speakers?: Array<{
        preset?: string;
        audio_url?: string;
    }>;
    cfg_scale?: number;
    style?: string;
    response_format?: 'mp3' | 'opus' | 'aac' | 'flac' | 'wav' | 'pcm';
    speed?: number;
}
/**
 * Text-to-speech creation response
 */
export interface TextToSpeechCreateResponse {
    audio: {
        url: string;
    };
    meta?: {
        usage?: {
            credits_used: number;
        };
    };
}
/**
 * Text-to-speech streaming response (for models that return raw audio)
 */
export interface TextToSpeechStreamResponse {
    audio: Buffer;
    meta?: {
        usage?: {
            credits_used: number;
        };
    };
}
/**
 * Text-to-speech response metadata
 */
export interface TextToSpeechMetadata {
    transaction_key: string;
    request_id: string;
    sha256: string;
    created: string;
    duration: number;
    channels: number;
    models: string[];
    model_info: Record<string, {
        name: string;
        version: string;
        arch: string;
    }>;
}
/**
 * Text-to-speech response with metadata
 */
export interface TextToSpeechResponse {
    metadata: TextToSpeechMetadata;
}
/**
 * Text-to-Speech resource class
 * Handles text-to-speech API calls with unified parameter interface
 */
export declare class TextToSpeech {
    private readonly _client;
    constructor(_client: AIMLAPIClient);
    /**
     * Create text-to-speech audio (JSON response)
     * @example
     * ```typescript
     * const result = await client.textToSpeech.create({
     *   model: 'openai/tts-1',
     *   text: 'Hello, world!',
     *   voice: 'alloy'
     * });
     * ```
     */
    create(params: TextToSpeechCreateParams, options?: any): Promise<TextToSpeechCreateResponse>;
    /**
     * Create text-to-speech audio (streaming response for models that support it)
     * @example
     * ```typescript
     * const result = await client.textToSpeech.createStream({
     *   model: '#g1_aura-athena-en',
     *   text: 'Hello, world!',
     *   encoding: 'mp3'
     * });
     * ```
     */
    createStream(params: TextToSpeechCreateParams, options?: any): Promise<TextToSpeechStreamResponse>;
    /**
     * Transform unified parameters to API-specific format
     * Filters out undefined parameters and handles model-specific transformations
     */
    private _transformToApiParams;
    /**
     * Check if model returns streaming audio response
     */
    private _isStreamingModel;
}
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