UserPermissions::getViewableTypeIds

protected function getViewableTypeIds(): array
{
	$viewableTypeIds = [];
	foreach($this->permissions as $entity => $permission)
	{
		if(preg_match('/^'.static::ENTITY_TYPE.'(d+)$/', $entity, $matches))
		{
			$viewableTypeIds[] = (int) $matches[1];
		}
	}

	return $viewableTypeIds;
}