code: public function remove(NodeConnectionInterface $connection)
      {
          if (false !== $id = array_search($connection, $this->pool, true)) {
              $this->slotmap->reset();
              $this->slots = array_diff($this->slots, array($connection));
              unset($this->pool[$id]);
  
              return true;
          }
  
          return false;
      }
docs: {@inheritdoc}