How to let the functional component inherit properties like "class"

fc-attribute-inheritance.js

// creating our functional component
<script lang="tsx">
Vue.component('MyFunctionalComponent', {
  functional: true,
  render: (h: CreateElement, ctx: RenderContext<any>) => {
    return <img {...ctx.data} />
  }
}
</script>

// now this:
<MyFunctionalComponent src="…" class="img-responsive" alt="my fc" />
  
// will turn into:
<img src="…" class="img-responsive" alt="my fc" />