export type ImageInput = {
    path?: string | undefined;
    url?: string | undefined;
    generate?: string | undefined;
    provider?: 'openai' | 'chatgpt' | 'gemini' | 'google' | 'default' | undefined;
    size?: string | undefined;
};
export type ResolvedImage = {
    buffer: Buffer;
    extension: string;
    mimeType: string;
    sourcePath?: string;
    width?: number;
    height?: number;
};
/**
 * Given an ImageInput (path, url, or generate), resolves it to a buffer,
 * extension, and mime type. Handles reading local files, fetching remote URLs,
 * and calling the AI image generation pipeline.
 */
export declare function resolveImage(input: ImageInput, label?: string): Promise<ResolvedImage>;
/**
 * Returns a base64 data URI string for embedding directly in HTML.
 */
export declare function imageToBase64(buffer: Buffer, mimeType: string): string;
/**
 * Escapes special HTML characters in a string.
 */
export declare function escapeHtml(s: string): string;
/**
 * Slugify a string for use as an HTML anchor id.
 */
export declare function slugify(s: string): string;
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