docs: def _work(self):
          """Process the information regarding the available ports."""
          if self._refresh_cache:
              # Inconsistent cache might cause exceptions. For example,
              # if a port has been removed, it will be known in the next
              # loop. Using the old switch port can cause exceptions.
              LOG.debug("Refreshing os_win caches...")
              self._utils.update_cache()
              self._refresh_cache = False
  
          if self._bound_ports or self._unbound_ports:
              eventlet.spawn_n(self._notify_plugin_on_port_updates)
  
          # notify plugin about port deltas
          if self._added_ports:
              LOG.debug("Agent loop has new devices!")
              self._treat_devices_added()
  
          if self._removed_ports:
              LOG.debug("Agent loop has lost devices...")
              self._treat_devices_removed()