How to prevent auto load module interface / how to override built in interface

In this module, user props when accessed through this.$auth.user have this type get user(): Record<string, unknown> | null;. I want to change this, so user object is typed with my interface, let say interface User {name:string, phone: string}. Also i want to force that this user property is not nullable, so i want to use directly for example this.$auth.user.name without checking for null.

What i have been tried:

Override $auth in index.d.ts in my ./types folder, but produce this error Subsequent property declarations must have the same type. and the new custom interface doesnt work.
Disable types in tsconfig which point to @nuxtjs/auth-next but it also doesnt work. When i call this.$auth it still using built-in interfaces.

So, how to override built in interface from module? If not applicable, then how to disable load interface from module, so i can use custom interface on my own?

"@nuxtjs/auth-next": "5.0.0-1667386184.dfbbb54"

nuxt-community / auth-module

How to prevent auto load module interface / how to override built in interface #1800