export declare class Demo {
    textArea: HTMLElement;
    markup: Map<any, any>;
    el: HTMLElement;
    markupState: string;
    tag: string;
    constructor();
    componentDidLoad(): void;
    componentDidUpdate(): void;
    initEditor(): void;
    initTextArea(): void;
    updateExample(): void;
    updateTextArea(textarea: any): void;
    copyExample(ev: any): void;
    render(): any;
}