protected_func authenticated

protected function authenticated (Request $request, $user)
    {
        if (Auth::check() && Auth::user()->role->id == 1 ) {
            $this->redirectTo = route('admin.dashboard');

        } elseif(Auth::check() && Auth::user()->role->id == 2 ) {
            $this->redirectTo = route('doctor.dashboard');

        } elseif(Auth::check() && Auth::user()->role->id == 3 ) {
            $this->redirectTo = route('nurse.dashboard');

        } else {
            $this->redirectTo = route('search.doctor');
        }
    }

public_func login()

public function login()
    {
       
        if (Auth::attempt([$this->field()=>request()->phn_number, 'password' => \request()->password ])){
           // Wanna Return Authenticated function
            return redirect()->intended('/');  // I wanna Call authenticated() function   here
            
            
        }else{
            return redirect()->back()->withInput('phn_number');
        }
    }