/**
 * VersionReadOnlyBanner
 *
 * Shown at the top of the inspector when a historical version is being previewed.
 * Copy rule: no em-dashes in version-history surfaces.
 */
import React from 'react';
export interface VersionReadOnlyBannerProps {
    versionNumber?: number | null;
}
export declare function VersionReadOnlyBanner({ versionNumber, }: VersionReadOnlyBannerProps): React.ReactElement;