storybook/docs/snippets/web-components/loader-story.ts.mdx

```ts
// TodoItem.stories.ts

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

import fetch from 'node-fetch';

/*
 *👇 Render functions are a framework specific feature to allow you control on how the component renders.
 * See https://storybook.js.org/docs/api/csf
 * to learn how to use render functions.
 */
const meta: Meta = {
  component: 'demo-todo-item',
  render: (args, { loaded: { todo } }) => TodoItem({ ...args, ...todo }),
};

export default meta;
type Story = StoryObj;

export const Primary: Story = {
  loaders: [
    async () => ({
      todo: await (await fetch('https://jsonplaceholder.typicode.com/todos/1')).json(),
    }),
  ],
};
```