```md
<!-- MyComponent.stories.mdx -->

import { Meta, Story } from '@storybook/addon-docs';

import MyComponent from './MyComponent.svelte';

<Meta title="MyComponent" component={MyComponent} />

export const getCaptionForLocale = (locale) => {
  switch(locale) {
    case 'es': return 'Hola!';
    case 'fr': return 'Bonjour!';
    case 'kr': return '안녕하세요!';
    case 'zh': return '你好!';
    default:
      return 'Hello!';
  }
};

<!--
 👇 Render functions are a framework specific feature to allow you control on how the component renders.
  See https://storybook.js.org/docs/7.0/svelte/api/csf
  to learn how to use render functions.
-->

<Story 
  name="StoryWithLocale"
  render={(args, { globals: { locale } }) => {
    const caption = getCaptionForLocale(locale);
    return {
      component: MyComponent,
      props: {
        locale: caption,
      },
    };
  }} />
```