/**
 * Full-width media attachment card for agent-authored messages.
 */
export declare const AgentMediaCard: import('react').ForwardRefExoticComponent<Omit<Omit<import('react').DetailedHTMLProps<import('react').HTMLAttributes<HTMLDivElement>, HTMLDivElement>, "ref">, "children" | "style"> & {
    media: import('./types').MediaAttachment;
    titleLevel?: 3 | 4 | 5 | 6;
    error?: string;
    onDownload?: () => void | Promise<void>;
    showPreview?: boolean;
    className?: string;
} & import('react').RefAttributes<HTMLDivElement>>;