trying to use static class inside template

.html

<template>
  <div class="home">
    <div v-if="Thing.foo === yourData"> 
    <!--the error message: Property or method "Thing" is not defined on the instance 
     but referenced during render  -->
      <p>tata</p>
    </div>
    <div v-else>
      <p>toto</p>
    </div>
  </div>
</template>

<script lang="ts">
import { Component, Prop, Vue } from "vue-property-decorator";

class Thing {
  static foo: number = 1;
}
@Component
export default class Home extends Vue {
  yourData: number = 1;
}
</script>