storybook/docs/snippets/react/app-story-with-mock.js.mdx

```js
// App.stories.js | App.stories.jsx | App.stories.ts | App.stories.tsx

import React from 'react';

import App from './App';

export default {
  component: App,
};

export const Success = {
  parameters: {
    fetch: {
      json: {
        JavaScript: 3390991,
        'C++': 44974,
        TypeScript: 15530,
        CoffeeScript: 12253,
        Python: 9383,
        C: 5341,
        Shell: 5115,
        HTML: 3420,
        CSS: 3171,
        Makefile: 189,
      },
    },
  },
};
```