docs: def launch_thread(self, name, fn, *args, **kwargs):
          """
          Adds a named thread to the "thread pool" dictionary of Thread objects.
  
          A daemon thread that executes the passed-in function `fn` with the
          given args and keyword args is started and tracked in the `thread_pool`
          attribute with the given `name` as the key.
          """
          logger.debug(
              "Launching thread '%s': %s(%s, %s)", name,
              fn, args, kwargs
          )
          self.thread_pool[name] = threading.Thread(
              target=fn, args=args, kwargs=kwargs
          )
          self.thread_pool[name].daemon = True
          self.thread_pool[name].start()