public function getBlameGuids($checkValid = false)
    {
        $multiBlamesAttribute = $this->multiBlamesAttribute;
        if ($multiBlamesAttribute === false) {
            return [];
        }
        $guids = Number::divide_guid_bin($this->$multiBlamesAttribute);
        if ($checkValid) {
            $guids = $this->unsetInvalidBlames($guids);
        }
        return $guids;
    }