code: def set_node(self,node):
          
          if node is None:
              if self.xmlnode.hasProp("node"):
                  self.xmlnode.unsetProp("node")
              return
          node = unicode(node)
          self.xmlnode.setProp("node", node.encode("utf-8"))
docs: Set the node of the item.
  
          :Parameters:
              - `node`: the new node or `None`.
          :Types:
              - `node`: `unicode`