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

```md
<!-- MyComponent.stories.mdx -->

import { Meta, Story, Canvas } from '@storybook/addon-docs';

import MyComponent from './MyComponent.svelte';

<Meta title="A MDX story using environment variables inside a .env file" component={MyComponent}/>

export const Template = (args) => ({
  Component: MyComponent,
  props: args,
});

<Canvas>
  <Story
    name="A MDX story using environment variables inside a .env file"
    args={{
      propertyA: process.env.STORYBOOK_DATA_KEY,
    }}
  >
    {Template.bind({})}
  </Story>
</Canvas>
```