How to use nuxt-property-decorator / nuxt-property-decorator @Ref() with Vuetify?

Question

Vue.js

Good afternoon, I ran into such a problem, when I try to throw @Ref on a v-form, I can’t specify the type.
I tried to find information on the Internet, what’s the catch, but I think it’s not right to google. I really want to crutch in a home project :)