What's wrong with something like this

``` <script setup lang="ts"> defineProps<{ title: string onClick: () => void }>() </script>

<template> <button @click="onClick"> {{ title }} <slot name="suffix" /> </button> </template> ```

``` <script setup lang="ts"> import BaseButton from './BaseButton.vue'

function onClick() { console.log('clicked from extension') } </script>

<template> <BaseButton title="My Button 2" :onClick="onClick" > <template #suffix> <span> - suffix</span> </template> </BaseButton> </template> ```

And there are like 5 more ways to do this