def save(self, form, name, composite_form, commit):
if self.shall_save(form, name, composite_form):<EOL><INDENT>return composite_form.save(commit=commit)<EOL><DEDENT>return None<EOL>
This method is called by
:meth:`django_superform.forms.SuperModelForm.save` in order to save the
modelform that this field takes care of and calls on the nested form's
``save()`` method. But only if
:meth:`~django_superform.fields.ModelFormField.shall_save` returns
``True``.