Property Slub\Mods\Element\RelatedItem::$allowedTypes is never read, only written.

Method Slub\Mods\Element\Specific\Location\HoldingSimple\CopyInformation::getForm() should return Slub\Mods\Element\Specific\PhysicalDescription\Form|null but returns Slub\Mods\Element\Common\LanguageElement.

Method Slub\Mods\Element\Specific\Location\HoldingSimple\CopyInformation::getShelfLocator() should return Slub\Mods\Element\Common\LanguageElement but returns null.

Method Slub\Mods\Element\Specific\Location\HoldingSimple\CopyInformation::getItemIdentifier() should return Slub\Mods\Element\Specific\Location\HoldingSimple\CopyInformation\ItemIdentifier|null but returns Slub\Mods\Element\Specific\Location\HoldingSimple\CopyInformation\EnumerationAndChronology.

Property Slub\Mods\Element\Specific\Location\Url::$allowedAccess is never read, only written.

Property Slub\Mods\Element\Specific\Name\AlternativeName::$allowedAlternativeTypes is never read, only written.

Property Slub\Mods\Element\Specific\Name\NamePart::$allowedTypes is never read, only written.

Property Slub\Mods\Element\Specific\OriginInfo\Agent::$allowedTypes is never read, only written.

Property Slub\Mods\Element\Specific\OriginInfo\Issuance::$allowedValues is never read, only written.