Vue3 定义 ref dom TS 类型

import { ComponentPublicInstance, defineComponent, ref } from 'vue';

export default defineComponent({
  // snipped...
  setup() {
    const field = ref<ComponentPublicInstance<HTMLInputElement>>();
    return {
      field,
      fun() { field.value.$el.value = 'some value'; }
    };
  }
  // snipped...
});