import fs from "node:fs/promises";
import type { GeneratedImageDetails, GeneratedImageSaveInput } from "./types.js";
export declare function sanitizeFileSegment(value: string | undefined): string;
export declare function generatedImagesRoot(): string;
export interface GeneratedImagePersistenceDeps {
    mkdir?: typeof fs.mkdir;
    writeFile?: typeof fs.writeFile;
}
export declare function persistGeneratedPng(input: GeneratedImageSaveInput, deps?: GeneratedImagePersistenceDeps): Promise<GeneratedImageDetails>;
//# sourceMappingURL=images.d.ts.map