How do I make v-btn size as large and pass new size in binding

<v-btn
    v-bind="$attrs"
    large
    elevation="0"
    class="red"
    v-on="$listeners"
  >

how make v-btn take defualt size as large but if i pass a new size in the (reusable <Button>) as small . then v-btn must take the new size small