storybook/docs/snippets/web-components/api-doc-block-story-parameter.ts.mdx

```ts
// Button.stories.ts

import type { Meta, StoryObj } from '@storybook/web-components';

const meta: Meta = {
  title: 'Button',
  component: 'demo-button',
};

export default meta;
type Story = StoryObj;

export const Basic: Story = {
  parameters: {
    docs: {
      story: { autoplay: true },
    },
  },
};
```