from django.core.validators import MaxValueValidator, MinValueValidator

. . .

    # create a Django fields with maximum and minimum limits
    tits_size = models.FloatField(
    validators = [
            MinValueValidator(70),
            MaxValueValidator(185.5)
        ]
    )
 

@user_passes_test(lambda u: u.is_superuser)
def view(request):
    ...

@user_passes_test(lambda u: u.is_superuser, login_url=..., redirect_field_name=...)
def view(request):
    ...