export interface HeadlessRenderOptions {
    id?: string;
    model?: any;
    data?: any;
    width?: number;
    height?: number;
    options?: any;
    context?: any;
    draft?: boolean;
    /** true 이면 thumbnail 크기(400x300)로 축소 */
    isThumbnail?: boolean;
}
/**
 * headless 브라우저 페이지를 준비하고 renderFn 을 실행한 결과를 반환한다.
 *
 * 공통 처리: pool acquire → headlessModel → fonts → viewport → request intercept → goto → data 주입 → renderFn → cleanup
 */
export declare function withHeadlessPage<T>({ id, model, data, width: w, height: h, options, context, draft, isThumbnail }: HeadlessRenderOptions, renderFn: (page: any) => Promise<T>): Promise<T | null>;