storybook/docs/snippets/svelte/loader-story.js.mdx

```js
// TodoItem.stories.js

import fetch from 'node-fetch';

import TodoItem from './TodoItem.svelte';

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

/*
 *👇 Render functions are a framework specific feature to allow you control on how the component renders.
 * See https://storybook.js.org/docs/7.0/svelte/api/csf
 * to learn how to use render functions.
 */
export const Primary = {
  render: (args, { loaded: { todo } }) => ({
    Component: TodoItem,
    props: {
      ...args,
      todo,
    },
  }),
  loaders: [
    async () => ({
      todo: await (await fetch('https://jsonplaceholder.typicode.com/todos/1')).json(),
    }),
  ],
};
```