corrected filter_export() example

docs/admin_integration.rst

@@ -380,7 +380,7 @@ Create a Resource subclass to apply the filter
             super().__init__()
             self.author_id = kwargs.get("author_id")
 
-        def filter_export(self, queryset, *args, **kwargs):
+        def filter_export(self, queryset, **kwargs):
             return queryset.filter(author_id=self.author_id)
 
         class Meta: