object_getattr returns a new reference but tuple_setitem STEALS a reference, so don't decref contents_obj, starts_obj, sizes_obj (but *do* decref tuple_obj)
object_getattr returns a new reference but tuple_setitem STEALS a reference, so don't decref contents_obj, starts_obj, sizes_obj (but *do* decref tuple_obj)

scikit-hep/uproot,scikit-hep/uproot,scikit-hep/uproot,scikit-hep/uproot