docs: async def send_synchronization_request(self, client, pid):
          """Issue a notification and request for sync for object with {pid} to the CN."""
          # Skip CN call for debugging
          # status = 200
          status = await client.synchronize(pid)
          if status == 200:
              self.progress_logger.event("Issued sync request, CN accepted")
          else:
              self.progress_logger.event(
                  "CNRead.synchronize() returned unexpected status code. "
                  'pid="{}" status="{}"'.format(pid, status)
              )