```js
// YourPage.stories.js

import DocumentScreen from './YourPage.svelte';

import { rest } from 'msw';

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: 'DocumentScreen',
  component: DocumentScreen,
};

//👇The mocked data that will be used in the story
const TestData = {
  user: {
    userID: 1,
    name: 'Someone',
  },
  document: {
    id: 1,
    userID: 1,
    title: 'Something',
    brief: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit.',
    status: 'approved',
  },
  subdocuments: [
    {
      id: 1,
      userID: 1,
      title: 'Something',
      content:
        'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.',
      status: 'approved',
    },
    {
      id: 2,
      userID: 1,
      title: 'Something else',
      content:
        'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.',
      status: 'awaiting review',
    },
    {
      id: 3,
      userID: 2,
      title: 'Another document',
      content:
        'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.',
      status: 'approved',
    },
    {
      id: 4,
      userID: 2,
      title: 'Something',
      content:
        'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.',
      status: 'approved',
    },
  ],
};

export const MockedSuccess = {
  render: (args) => ({
    Component: DocumentScreen,
  }),
  parameters: {
    msw: [
      rest.get('https://your-restful-endpoint', (_req, res, ctx) => {
        return res(ctx.json(TestData));
      }),
    ],
  },
};

export const MockedError = {
  render: (args) => ({
    Component: DocumentScreen,
  }),
  parameters: {
    msw: [
      rest.get('https://your-restful-endpoint', (_req, res, ctx) => {
        return res(ctx.delay(800), ctx.status(403));
      }),
    ],
  },
};
```