```ts
// ButtonGroup.stories.ts

import ButtonGroup from './ButtonGroup.vue';

import type { Meta, StoryObj } from '@storybook/vue';

//👇 Imports the Button stories
import * as ButtonStories from './Button.stories';

const meta: Meta<typeof ButtonGroup> = {
  /* 👇 The title prop is optional.
   * See https://storybook.js.org/docs/7.0/vue/configure/overview#configure-story-loading
   * to learn how to generate automatic titles
   */
  title: 'ButtonGroup',
  component: ButtonGroup,
};

export default meta;
type Story = StoryObj<typeof ButtonGroup>;

export const Pair: Story = {
  render: (args, { argTypes }) => ({
    components: { ButtonGroup },
    props: Object.keys(argTypes),
    template: '<ButtonGroup v-bind="$props" />',
  }),
  args: {
    buttons: [{ ...ButtonStories.Primary.args }, { ...ButtonStories.Secondary.args }],
    orientation: 'horizontal',
  },
};
```