Adjusted BaseFormSet.get_form_kwargs example in docs.
@@ -748,6 +748,9 @@ argument - the index of the form in the formset. The index is ``None`` for the
... kwargs['custom_kwarg'] = index
... return kwargs
+ >>> ArticleFormSet = formset_factory(MyArticleForm, formset=BaseArticleFormSet)
+ >>> formset = ArticleFormSet()
+
.. _formset-prefix:
Customizing a formset's prefix
