docs: def parse_smarttag(document, container, tag_elem):
      "Parse the endnote element."
  
      tag = doc.SmartTag()
  
      tag.element = tag_elem.attrib[_name('{{{w}}}element')]
  
      for elem in tag_elem:
          if elem.tag == _name('{{{w}}}r'):
              parse_text(document, tag, elem)
  
          if elem.tag == _name('{{{w}}}smartTag'):
              parse_smarttag(document, tag, elem)
  
      container.elements.append(tag)
  
      return