storybook/docs/snippets/common/button-group-story-subcomponents.ts.mdx

```ts
// ButtonGroup.stories.ts

import { Meta } from '@storybook/react/types-6-0';

import { Button, ButtonGroup } from '../ButtonGroup';

export default {
  title: 'Path/to/ButtonGroup',
  component: ButtonGroup,
  subcomponents: { Button },
} as Meta;
```