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

```js
// my-component.stories.js

import { MyComponent } from './my-component';

export default {
  /* 👇 The title prop is optional.
   * See https://storybook.js.org/docs/7.0/web-components/configure/overview#configure-story-loading
   * to learn how to generate automatic titles
   */
  title: 'MyComponent',
};

/*
 *👇 Render functions are a framework specific feature to allow you control on how the component renders.
 * See https://storybook.js.org/docs/7.0/web-components/api/csf
 * to learn how to use render functions.
 */
export const ExampleStory = {
  render: (args) => MyComponent({ propertyA }),
  args: {
    propertyA: process.env.STORYBOOK_DATA_KEY,
  },
};
```