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

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

import React from 'react';

import { MyComponent } from './MyComponent';

export default {
    /* 👇 The title prop is optional.
   * See https://storybook.js.org/docs/react/configure/overview#configure-story-loading
   * to learn how to generate automatic titles
   */
  title: 'MyComponent',
  component: MyComponent,
};

const Template = (args) => <MyComponent {...args} />;

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