GoogleApiBatch::getExDatesByInstances

private function getExDatesByInstances(int $originalEventId): array
{
	$instances = $this->getInstanceByRecurrenceId($originalEventId);

	$excludeDates = [];
	foreach ($instances as $instance)
	{
		$excludeDates[] = CCalendar::Date(CCalendar::Timestamp($instance['DATE_FROM']), false);
	}

	return $excludeDates;
}