code: def enable_data_link(self, instance, link):
          
          req = rest_pb2.EditLinkRequest()
          req.state = 'enabled'
          url = '/links/{}/{}'.format(instance, link)
          self.patch_proto(url, data=req.SerializeToString())
docs: Enables a data link.
  
          :param str instance: A Yamcs instance name.
          :param str link: The name of the data link.