API Reference > presentation-common > PresentationRules > ContentInstancesOfSpecificClassesSpecification > handleInstancesPolymorphically handleInstancesPolymorphically handleInstancesPolymorphically: undefined | boolean Should instances be queried using a polymorphic query - from classes and all their subclasses. This doesn't mean the resulting content will have all properties of the subclasses though - they're only taken from base classes specified in classes attribute. Defined in presentation/common/src/rules/content/ContentInstancesOfSpecificClassesSpecification.ts Line 40 Last Updated: 13 June, 2024