interface IIntroJs {
   steps: { element: string; children: string }[];
   isStart?: boolean;
}

new IntroJs(options: IIntroJs);

const steps = [
  {
    element: '.title',
    children: 'Title One',
  },
  {
    element: '.second',
    children: 'Title Two',
  },
  {
    element: '.three',
    children: 'Title Three',
  },
  {
    element: '.cat',
    children: 'Cat',
  },
];
const instante = new IntroJs({
  steps,
});