API Reference > presentation-common > PresentationRules > DEPRECATED_ContentRelatedInstancesSpecification > relatedClasses relatedClasses relatedClasses: MultiSchemaClassesSpecification | MultiSchemaClassesSpecification[] List of related instance ECClass specifications. Optional if DEPRECATED_ContentRelatedInstancesSpecification.relationships is specified. Defined in presentation/common/src/rules/content/ContentRelatedInstancesSpecification.ts Line 40 Last Updated: 13 June, 2024