如何使用v-form禁用自动完成功能

<template>
  <v-form @submit="submitForm">
    <div>
      <label for="username">用户名：</label>
      <input id="username" type="text" v-model="username" v-validate="'required'" autocomplete="off">
    </div>
    <div>
      <label for="password">密码：</label>
      <input id="password" type="password" v-model="password" v-validate="'required'" autocomplete="off">
    </div>
    <button type="submit">提交</button>
  </v-form>
</template>

<script>
import { ValidationProvider, ValidationObserver } from 'vee-validate';

export default {
  components: {
    ValidationProvider,
    ValidationObserver,
  },
  data() {
    return {
      username: '',
      password: '',
    };
  },
  methods: {
    submitForm() {
      // 表单提交逻辑
    },
  },
};
</script>