['required', 'string', 'max:100'], 'last_name' => ['required', 'string', 'max:100'], 'phone' => ['nullable', 'string', 'max:20'], 'date_of_birth' => ['nullable', 'date', 'before:today'], 'timezone' => ['required', 'string', 'timezone:all'], 'locale' => ['required', 'string', 'in:nl,en'], ]; } }