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

```tsx
// MyComponent.stories.ts| tsx

import type { Meta, StoryObj } from '@storybook/react';

import { MyComponent } from './MyComponent';

const meta: Meta<typeof MyComponent> = {
  /* 👇 The title prop is optional.
   * See https://storybook.js.org/docs/7.0/react/configure/overview#configure-story-loading
   * to learn how to generate automatic titles
   */
  title: 'MyComponent',
  component: MyComponent,
};

export default meta;
type Story = StoryObj<typeof MyComponent>;

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