docs: def get_impediments():
      """
      :raise urllib2.URLError | urllib.error.URLError: When
      :return:
      """
      file = urlopen(XML_URL)
  
      doc = dom.parse(file)
      xml = doc.documentElement
  
      nodes = xml.getElementsByTagName('utr')
      impediments = [extract(node) for node in nodes]
  
      return impediments