Bolt\Storage\Entity\MagicAttributeTrait::__unset PHP Метод

    public function __unset($key)
    {
        if ($this->has($key) && property_exists($this, $key)) {
            unset($this->{$key});
        } elseif ($this->has($key)) {
            unset($this->_fields[$key]);
        }
        return false;
    }