storybook/docs/snippets/react/my-component-with-env-variables.js.mdx

```js
// MyComponent.stories.js | MyComponent.stories.jsx

import React from 'react';

import { MyComponent } from './MyComponent';

export default {
  component: MyComponent,
};

export const ExampleStory = {
  args: {
    propertyA: process.env.STORYBOOK_DATA_KEY,
  },
};
```