interface GenerateTileParams {
    prompt: string;
    width: number;
    height: number;
    apiKey?: string;
    seamless?: boolean;
}
/**
 * Generates a single tile image using the Retro Diffusion client.
 *
 * @param params - Parameters for the tile generation (prompt, size, etc.).
 * @returns A Promise resolving to the base64 encoded image string.
 * @throws If image generation fails or no image data is returned.
 */
export declare function generateTileImage(params: GenerateTileParams): Promise<string>;
export {};