```ts
// Page.stories.ts

import { moduleMetadata } from '@storybook/angular';

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

import { Button } from './button.component';
import { Header } from './header.component';
import { Page } from './page.component';

//👇 Imports all Header stories
import * as HeaderStories from './Header.stories';

export default {
  component: Page,
  decorators: [
    moduleMetadata({
      declarations: [Button, Header],
      imports: [CommonModule],
    }),
  ],
};

export const LoggedIn = {
  args: {
    ...HeaderStories.LoggedIn.args,
  },
};
```