recent change in qualitative analysis now also realised in stormpy

src/pomdp/qualitative_analysis.cpp

@@ -53,5 +53,5 @@ void define_qualitative_policy_search_nt(py::module& m) {
 
     py::class_<storm::pomdp::WinningRegion> winningRegion(m, "BeliefSupportWinningRegion");
     winningRegion.def_static("load_from_file", &storm::pomdp::WinningRegion::loadFromFile, py::arg("filepath"));
-    winningRegion.def("store_to_file", &storm::pomdp::WinningRegion::storeToFile, py::arg("filepath"));
+    winningRegion.def("store_to_file", &storm::pomdp::WinningRegion::storeToFile, py::arg("filepath"), py::arg("preamble"), py::arg("append")=false);
 }