import { type ResultValue } from "../runtime/result.js";
/**
 * Backs `std::image.generateImage`. Calls the active client's image() method,
 * charges cost/guards + tokens (only on success), emits an `imageGeneration`
 * statelog event, and returns the first image as base64 + mimeType.
 */
export declare function _generateImage(prompt: string, model: string, provider: string, size: string, quality: string, images: string[], apiKey: string, baseUrl: string): Promise<ResultValue>;