storybook/docs/snippets/angular/app-story-with-mock.ts.mdx

```ts
// App.stories.ts

import { Story, Meta } from '@storybook/angular/types-6-0';
import { AppComponent } from './app.component';

export default {
  component: AppComponent,
  title: 'App',
} as Meta;

const Template: Story<AppComponent> = (args) => ({
  props: args,
});

export const Success = Template.bind({});
Success.parameters = {
  fetch: {
    json: {
      JavaScript: 3390991,
      'C++': 44974,
      TypeScript: 15530,
      CoffeeScript: 12253,
      Python: 9383,
      C: 5341,
      Shell: 5115,
      HTML: 3420,
      CSS: 3171,
      Makefile: 189,
    },
  },
};
```