storybook/docs/snippets/web-components/component-story-custom-args-complex.js.mdx

```js
// Button.stories.js

import { html } from 'lit';

export default {
  component: 'custom-component',
  //👇 Creates specific argTypes
  argTypes: {
    propertyA: {
      options: ['Item One', 'Item Two', 'Item Three'],
      control: { type: 'select' }, // Automatically inferred when 'options' is defined
    },
    propertyB: {
      options: ['Another Item One', 'Another Item Two', 'Another Item Three'],
    },
  },
};

const someFunction = (valuePropertyA, valuePropertyB) => {
  // Do some logic here
};

export const ExampleStory = {
  render: ({ propertyA, propertyB }) => {
    //👇 Assigns the function result to a variable
    const someFunctionResult = someFunction(propertyA, propertyB);

    return html`
      <custom-component
        .propertyA=${propertyA}
        .propertyB=${propertyB}
        .someProperty=${someFunctionResult}
      ></custom-component>
    `;
  },
  args: {
    propertyA: 'Item One',
    propertyB: 'Another Item One',
  },
};
```