import * as React from 'react';
import { ISiteMessageBarProps } from './SiteMessageBar.types';
export interface ISiteMessageBarState {
    isVisible: boolean;
}
export declare class SiteMessageBar extends React.Component<ISiteMessageBarProps, ISiteMessageBarState> {
    private _sessionStorageKey;
    constructor(props: ISiteMessageBarProps);
    render(): JSX.Element | null;
    private _onClose;
}