I want to mention group the user either admin or customer while register(programmatically) in Django. I am new to Django

From the admin panel I can group the user either customer or admin. How do to programmatically? This my function register in views.py.

@unauthenticated_user
def register(request):    
    form = CreateUserForm()    
    if request.method == 'POST':
        form = CreateUserForm(request.POST)
        if form.is_valid():
            form.save()
            profile = form.save(commit=False) 
            profile.save()
            user = form.cleaned_data.get('username')
            us1 =  User.objects.filter(username=user).first()
            us1.is_staff = True 
            us1.is_superuser = False 
            
            us1.save()
            messages.success(request, 'Account was created for ' + user)
            return redirect('loginpage')
        

    context = {'form':form}
    return render(request, 'register.html', context)