<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def smart_generic_inlineformset_factory(model, request, form=ModelForm, formset=BaseGenericInlineFormSet, ct_field='content_type', fk_field='object_id', fields=None, exclude=None, extra=3, can_order=False, can_delete=True, min_num=None, max_num=None, formfield_callback=None, widgets=None, validate_min=False, validate_max=False, localized_fields=None, labels=None, help_texts=None, error_messages=None, formreadonlyfield_callback=None, readonly_fields=None, for_concrete_model=True, readonly=False):
 """ Returns a ``GenericInlineFormSet`` for the given kwargs. You must provide ``ct_field`` and ``fk_field`` if they are different from the defaults ``content_type`` and ``object_id`` respectively. """

    opts = model._meta
    # if there is no field called `ct_field` let the exception propagate
    ct_field = opts.get_field(ct_field)
    if not isinstance(ct_field, models.ForeignKey) or ct_field.related_model != ContentType:
        raise Exception("fk_name '%s' is not a ForeignKey to ContentType" % ct_field)
    fk_field = opts.get_field(fk_field)  # let the exception propagate
    if exclude is not None:
        exclude = list(exclude)
        exclude.extend([ct_field.name, fk_field.name])
    else:
        exclude = [ct_field.name, fk_field.name]

    kwargs = {
        'form': form,
        'formfield_callback': formfield_callback,
        'formset': formset,
        'extra': extra,
        'can_delete': can_delete,
        'can_order': can_order,
        'fields': fields,
        'exclude': exclude,
        'max_num': max_num,
        'min_num': min_num,
        'widgets': widgets,
        'validate_min': validate_min,
        'validate_max': validate_max,
        'localized_fields': localized_fields,
        'formreadonlyfield_callback': formreadonlyfield_callback,
        'readonly_fields': readonly_fields,
        'readonly': readonly,
        'labels': labels,
        'help_texts': help_texts,
        'error_messages': error_messages,
    }

    FormSet = smartmodelformset_factory(model, request, **kwargs)
    FormSet.ct_field = ct_field
    FormSet.ct_fk_field = fk_field
    FormSet.for_concrete_model = for_concrete_model
    return FormSet