FreeOpcUa / python-opcua

        node.NodeAttributes = attrs

        self.server.add_nodes([node])

        self._add_refs(obj)

    def _add_variable_value(self, obj):

        """

        Returns the value for a Variable based on the objects valuetype. 

        """

        if obj.valuetype == 'ListOfLocalizedText':

            return ua.Variant([ua.LocalizedText(txt) for txt in obj.value], None)

        elif obj.valuetype == 'EnumValueType':

            values = []

            for ev in obj.value:

                enum_value = ua.EnumValueType()

                enum_value.DisplayName = ua.LocalizedText(ev['DisplayName'])

                enum_value.Description = ua.LocalizedText(ev['Description'])

                enum_value.Value = int(ev['Value'])

                values.append(enum_value)

            return values

        elif obj.valuetype == 'Argument':

            values = []

            for arg in obj.value:

                argument = ua.Argument()

                argument.Name = arg['Name']

        elif obj.valuetype == 'Argument':

            values = []

            for arg in obj.value:

                argument = ua.Argument()

                argument.Name = arg['Name']

                argument.Description = ua.LocalizedText(arg['Description'])

                argument.DataType = self.to_nodeid(arg['DataType'])

                argument.ValueRank = int(arg['ValueRank'])

                argument.ArrayDimensions = arg['ArrayDimensions']

                values.append(argument)

            return values

        return ua.Variant(obj.value, getattr(ua.VariantType, obj.valuetype))

    def add_variable_type(self, obj):

        node = self._get_node(obj)

        attrs = ua.VariableTypeAttributes()

        if obj.desc:

            attrs.Description = ua.LocalizedText(obj.desc)

        attrs.DisplayName = ua.LocalizedText(obj.displayname)

        attrs.DataType = self.to_nodeid(obj.datatype)

        if obj.value and len(obj.value) == 1: