add more shortcuts

Author: oroulet

opcua/common/shortcuts.py

@@ -17,9 +17,10 @@ def __init__(self, server):
         self.base_variable_type = Node(server, ObjectIds.BaseVariableType)
         self.folder_type = Node(server, ObjectIds.FolderType)
         self.enum_data_type = Node(server, ObjectIds.Enumeration)
-        self.types = Node(server, 86)
-        self.data_types = Node(server, 90)
-        self.event_types = Node(server, 3048)
-        self.reference_types = Node(server, 91)
-        self.variable_types = Node(server, 89)
-        self.object_types = Node(server, 88)
+        self.types = Node(server, ObjectIds.TypesFolder)
+        self.data_types = Node(server, ObjectIds.DataTypesFolder)
+        self.event_types = Node(server, ObjectIds.EventTypesFolder)
+        self.reference_types = Node(server, ObjectIds.ReferenceTypesFolder)
+        self.variable_types = Node(server, ObjectIds.VariableTypesFolder)
+        self.object_types = Node(server, ObjectIds.ObjectTypesFolder)
+        self.namespace_array = Node(server, ObjectIds.Server_NamespaceArray)