useVuelidate doesnt work in options API

[xspaniki]

I wanted to migrate vuelidate 0.x to 2.x and use options API syntax from example

import { useVuelidate } from '@vuelidate/core'

export default {
  name: 'UsersPage',
  data: () => ({
    form: {
      name: '',
      email: ''
    }
  }),
  setup: () => ({ v$: useVuelidate() }),
  validations () {
    return {
      form: {
        name: { required },
        email: { required, email }
      }
    }
  }
}

rendered object in dom:

but for some reason useVuelidate doesnt use data and validations, v$ object doesnt contains validations. When i tried composition API example it works

import { reactive } from 'vue' // or '@vue/composition-api' in Vue 2.x
import { useVuelidate } from '@vuelidate/core'
import { email, required } from '@vuelidate/validators'

export default {
  setup () {
    const state = reactive({
      name: '',
      emailAddress: ''
    })
    const rules = {
      name: { required },
      emailAddress: { required, email }
    }

    const v$ = useVuelidate(rules, state)

    return { state, v$ }
  }
}

rendered object in dom:

versions:
vue@2.7.16
@vuelidate/core@2.0.3
@vuelidate/validators@2.0.4