code: def create(cls, root, definitions):
          
          fn = cls.tags.get(root.name)
          if fn is not None:
              return fn(root, definitions)
docs: Create an object based on the root tag name.
  
          @param root: An XML root element.
          @type root: L{Element}
          @param definitions: A definitions object.
          @type definitions: L{Definitions}
          @return: The created object.
          @rtype: L{WObject}