```ts
// YourPage.stories.ts

import { CommonModule } from '@angular/common';
import { HttpClientModule } from '@angular/common/http';

import { Meta, moduleMetadata, Story } from '@storybook/angular';

import { rest } from 'msw';

import { DocumentScreen } from './YourPage.component';
import { DocumentList } from './DocumentList.component';
import { DocumentHeader } from './DocumentHeader.component';
import { PageLayout } from './PageLayout.component';

export default {
  /* 👇 The title prop is optional.
   * See https://storybook.js.org/docs/angular/configure/overview#configure-story-loading
   * to learn how to generate automatic titles
   */
  title: 'DocumentScreen',
  component: DocumentScreen,
  decorators: [
    moduleMetadata({
      declarations: [DocumentList, DocumentHeader, PageLayout],
      imports: [CommonModule, HttpClientModule],
    }),
  ],
} as Meta;

//👇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',
    },
  ],
};

const PageTemplate: Story = () => ({
  props: {},
});

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

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