Fix LRN binding of attributesName.

python_binding/operator/pybind_LRN.cpp

@@ -34,7 +34,7 @@ void init_LRN(py::module& m) {
 		.def_static("attributes_name", []() {
 			std::vector<std::string> result;
 			auto attributes = LRN_Op::attributesName();
-			for (size_t i = 0; attributes[i] != nullptr; ++i) {
+			for (size_t i = 0; i < size(EnumStrings<LRN_Op::Attr>::data); ++i) {
 				result.emplace_back(attributes[i]);
 			}
 				return result;