storybook/examples/html-kitchen-sink/stories/loaders.stories.js

export default {
  title: 'Core/Loaders',
  loaders: [async () => new Promise((r) => setTimeout(() => r({ kindValue: 7 }), 3000))],
};

export const Story = (args, { loaded }) =>
  `<div>Loaded Value is ${JSON.stringify(loaded, null, 2)}</div>`;