Set $params manually with $externalResults

Hi. Sorry for my bad English. In addition to validation using vuelidate, I use server-side validation. The server sends input error messages and an additional validation parameter (for example count for minLength), so that I can use it further for pluralization in vue-i18next (minimum 1 symbol | minimum 5 symbols). To translate messages from vuelidate itself, I use $params, but $externalResults does not allow me to set it manually. How can I get around this?