code: def creators(self):
          
          # return tuples of name and role
          result = []
          creators = self._safe_get_element('ItemAttributes.Creator')
          if creators is not None:
              for creator in creators:
                  role = creator.attrib['Role'] if \
                      'Role' in creator.attrib else None
                  result.append((creator.text, role))
          return result
docs: Creators.
  
          Creators are not the authors. These are usually editors, translators,
          narrators, etc.
  
          :return:
              Returns a list of creators where each is a tuple containing:
  
                  1. The creators name (string).
                  2. The creators role (string).