public function setUpdatedRange($updatedRange)
    {
        if ($updatedRange instanceof DateTimeRange) {
            $this->updatedRange = $updatedRange;
        } elseif (is_array($updatedRange)) {
            $this->updatedRange = new DateTimeRange($updatedRange);
        } else {
            $this->updatedRange = null;
            trigger_error('Argument must be an object of class DateTimeRange. Data loss!', E_USER_WARNING);
        }

        return $this;
    }