code: def get_element_from_clark(self, element):
          
          element = element.split('}')[-1]
          xpath_path = \
              '//xs:element[@name="{element}"]' + \
              '/xs:annotation/xs:documentation'.format(element=element)
          return xpath_path
docs: **Helper method:** Given a Clark's Notation
          `{url:schema}Element` element, return the
          valid xpath on your xsd file, frequently
          it is not necesary overwrite this method but
          different xsd from different source
          can have different logic which I do not know now,
          then simply take this as an example and set the
          correct xpath conversion in your project.
  
          :param str element: Element string following the Clark's Notation