chore: reorder parameters of Leaky constructor

include/aidge/operator/MetaOperatorDefs.hpp

@@ -213,8 +213,8 @@ std::shared_ptr<MetaOperator_Op> LSTM_Op(DimSize_t seq_length);
 
 std::shared_ptr<MetaOperator_Op> LeakyOp();
 std::shared_ptr<Node> Leaky(const int nbTimeSteps,
-                            const float threshold,
                             const float beta,
+                            const float threshold = 1.0,
                             const std::string &name = "");
 
 } // namespace Aidge

python_binding/operator/pybind_MetaOperatorDefs.cpp

@@ -182,8 +182,8 @@ void declare_LSTMOp(py::module &m) {
 void declare_LeakyOp(py::module &m) {
     m.def("Leaky", &Leaky, 
           py::arg("nb_timesteps"),
-          py::arg("threshold"),
           py::arg("beta"),
+          py::arg("threshold") = 1.0,
           py::arg("name") = "");
 }
 

src/operator/MetaOperatorDefs/Leaky.cpp

@@ -14,8 +14,8 @@ constexpr auto memorizeOpDataOutputRecIndex = 1;
 constexpr auto memorizeOpDataOutputIndex = 0;
 
 std::shared_ptr<Node> Leaky(const int nbTimeSteps,
-                            const float threshold,
                             const float beta,
+                            const float threshold,
                             const std::string &name) {
 
     Log::warn("! Lots of parameters are hardcoded");