[add] access to attributes of Node

python_binding/graph/pybind_Node.cpp

@@ -34,6 +34,11 @@ void init_Node(py::module& m) {
     Type of the node.
     )mydelimiter")
 
+    .def("attributes", &Node::attributes,
+    R"mydelimiter(
+    Get attributes.
+    )mydelimiter")
+
     .def("get_operator", &Node::getOperator,
     R"mydelimiter(
     Get the Operator object of the Node.
@@ -48,7 +53,7 @@ void init_Node(py::module& m) {
     :rtype: str
     )mydelimiter")
 
-    .def("create_unique_name", &Node::createUniqueName, py::arg("base_name"), 
+    .def("create_unique_name", &Node::createUniqueName, py::arg("base_name"),
     R"mydelimiter(
     Given a base name, generate a new name which is unique in all the GraphViews containing this node.