declare const SafeHTMLElement: {
    new (): HTMLElement;
    prototype: HTMLElement;
};
declare class ChatWidget extends SafeHTMLElement {
    private _isOpen;
    private _isMobile;
    private _fullChatUrl;
    private _baseUrl;
    private _isFirstLoad;
    private _firstChatOpen;
    private _messageBubbleVisible;
    private readonly _cookieName;
    private readonly _cookieExpDays;
    private _chatModal;
    private _chatButton;
    private _messageContainer;
    private _connected;
    private _lastRenderedState;
    private _config;
    private setCookie;
    private getCookie;
    private updateChatUrl;
    constructor();
    static get observedAttributes(): string[];
    attributeChangedCallback(name: string, oldValue: string, newValue: string): void;
    /**
     * it's part of the Custom Elements API.
     * https://developer.mozilla.org/en-US/docs/Web/API/Web_components/Using_custom_elements
     *
     * Called once the element is inserted into the DOM
     */
    connectedCallback(): void;
    disconnectedCallback(): void;
    private setupEventListeners;
    private removeEventListeners;
    private handleResize;
    private toggleChat;
    private closeBubble;
    private setBubbleCookie;
    private updateChatState;
    private updateMessageBubble;
    private updateContext;
    private handlePostMessage;
    private closeChat;
    private render;
}
export default ChatWidget;