code: def _docf(self, tag, val):
          
          # TODO(kelkabany): We're currently just dropping all doc ref tags ...
          # NOTE(praneshp): ... except for versioned routes
          if tag == 'route':
              if ':' in val:
                  val, version = val.split(':', 1)
                  version = int(version)
              else:
                  version = 1
              url = fmt_url(self.cur_namespace.name, val, version)
              # NOTE: In js, for comments, we drop the namespace name and the '/' when
              # documenting URLs
              return url[(len(self.cur_namespace.name) + 1):]
  
          return val
docs: Callback used as the handler argument to process_docs(). This converts
          Stone doc references to JSDoc-friendly annotations.