correctly mark copy constructors

Author: arashbm

src/common_edge_properties.hpp

@@ -14,7 +14,7 @@ template <typename EdgeT>
 nb::class_<EdgeT> define_basic_edge_concept(nb::module_& m) {
   nb::class_<EdgeT> cls(m, python_type_str<EdgeT>().c_str());
 
-  cls.def(nb::init<EdgeT>(),
+  cls.def(nb::init<const EdgeT&>(),
         "edge"_a,
         nb::call_guard<nb::gil_scoped_release>())
     .def("mutated_verts",

src/implicit_event_graphs.cpp

@@ -21,6 +21,8 @@ struct declare_implicit_event_graph_class {
     using Net = reticula::implicit_event_graph<EdgeT, AdjT>;
     nb::class_<Net>(
         m, python_type_str<Net>().c_str())
+      .def(nb::init<const Net&>(),
+          nb::call_guard<nb::gil_scoped_release>())
       .def(nb::init<std::vector<EdgeT>, AdjT>(),
           "events"_a, "temporal_adjacency"_a,
           nb::call_guard<nb::gil_scoped_release>())

src/networks.cpp

@@ -21,7 +21,7 @@ struct declare_network_class {
     nb::class_<Net>(m, python_type_str<Net>().c_str())
       .def(nb::init<>(),
           nb::call_guard<nb::gil_scoped_release>())
-      .def(nb::init<reticula::network<EdgeT>>(),
+      .def(nb::init<const Net&>(),
           "network"_a,
           nb::call_guard<nb::gil_scoped_release>())
       .def(nb::init<std::vector<EdgeT>>(),

src/temporal_clusters.cpp

@@ -23,7 +23,7 @@ struct declare_temporal_cluster_types {
       .def(nb::init<AdjT, std::size_t>(),
           "temporal_adjacency"_a, "size_hint"_a = 0,
           nb::call_guard<nb::gil_scoped_release>())
-      .def(nb::init<Cluster>(),
+      .def(nb::init<const Cluster&>(),
           "temporal_cluester"_a,
           nb::call_guard<nb::gil_scoped_release>())
       .def(nb::init<std::vector<EdgeT>, AdjT, std::size_t>(),