/**
 * Image Generator — multi-backend image generation tool.
 * Supports DALL·E (OpenAI), Stable Diffusion (local), and Replicate.
 */
export interface ImageGenConfig {
    provider?: 'dalle' | 'stable-diffusion' | 'replicate';
    openaiApiKey?: string;
    replicateApiKey?: string;
    sdApiUrl?: string;
    defaultModel?: string;
    defaultSize?: string;
}
export interface ImageGenResult {
    success: boolean;
    url?: string;
    base64?: string;
    error?: string;
    provider: string;
}
export declare class ImageGenerator {
    private config;
    constructor(config?: ImageGenConfig);
    /** Auto-detect best available provider */
    detectProvider(): string | null;
    /** Get configuration status for the settings UI */
    getStatus(): {
        configured: boolean;
        providers: {
            name: string;
            configured: boolean;
        }[];
    };
    generate(prompt: string, options?: {
        provider?: string;
        size?: string;
        model?: string;
    }): Promise<ImageGenResult>;
    private generateDalle;
    private generateSD;
    private generateReplicate;
}
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