docs: async def send(self, config, entry):
          """ Send a webmention to this target from the specified entry """
          if self.endpoint:
              LOGGER.debug("%s -> %s", entry.url, self.url)
              try:
                  await self.endpoint.send(config, entry.url, self.url)
              except Exception as err:  # pylint:disable=broad-except
                  LOGGER.warning("Ping %s: got %s: %s",
                                 self.url, err.__class__.__name__, err)