code: def list(self, search_opts=None, limit=None,
               marker=None, sort_by=None, reverse=None):
          
          query = base.get_query_string(search_opts, limit=limit, marker=marker,
                                        sort_by=sort_by, reverse=reverse)
          url = "/jobs%s" % query
          return self._page(url, 'jobs', limit)
docs: Get a list of Jobs.