protected function selectionHandler()
    {
        $userCount = count($this->choices);
        if ($userCount > static::MAX_USER_CHOICES) {
            $this->autocomplete();
        } elseif ($userCount > 1) {
            $this->selector();
        } elseif (1 === $userCount) {
            $this->editor($this->choices[0]);
        }
    }