QFile with class component

[szekelyisz]

Hi, consider the following snippet:

<template>
  <q-page padding>
    <q-file v-model="file" label="Select file..." />
  </q-page>
</template>

<script lang="ts">
import { Vue, Component } from 'vue-property-decorator';
@Component
export default class MyComponent extends Vue {
  file = /* what goes here? */;
}
</script>

How to initialize file? It can't be undefined, otherwise the class component won't pick it up ("not defined on the instance but referenced during render"). If it's null, the picker is not shown. QFile expects it to be a File, FileList, or Array (in my case it has to be a File, because I want a single file picker). If I put new File([], 'AnyFile') there, the picker will display "AnyFile" by default that I don't like. Any suggestions? Thanks!