import React from 'react';
import type { DocumentVersion } from '@pantheon-systems/css-client';
export interface HistoricalVersionBannerProps {
    /** The historical version being viewed. Omit when the version is not yet loaded — shows exit-only banner. */
    version?: DocumentVersion;
    /** Callback to return to the latest version. */
    onReturnToLatest: () => void;
    /** Callback to revert to the viewed version (creates a new version). */
    onRestoreVersion?: (version: DocumentVersion) => Promise<void>;
    /** Whether the current user is allowed to revert (admin/editor only). */
    canRevert?: boolean;
    /** Whether a return-to-latest is in progress (shows a loading state). */
    isReturning?: boolean;
    /** Additional CSS class name. */
    className?: string;
    /** Called when the user clicks the "Previous" (older) stepper. */
    onPrevious?: () => void;
    /** Called when the user clicks the "Next" (newer) stepper. */
    onNext?: () => void;
    /** Whether there is an older version to step to. */
    hasPrevious?: boolean;
    /** Whether there is a newer version to step to. */
    hasNext?: boolean;
}
export declare function HistoricalVersionBanner({ version, onReturnToLatest, onRestoreVersion, canRevert, isReturning, className, onPrevious, onNext, hasPrevious, hasNext, }: HistoricalVersionBannerProps): React.ReactElement;