API Reference > presentation-common > PresentationRules > DEPRECATED_RelatedPropertiesSpecification > relationships relationships relationships: MultiSchemaClassesSpecification | MultiSchemaClassesSpecification[] Specifications of ECRelationshipClasses. Optional if DEPRECATED_RelatedPropertiesSpecification.relatedClasses is specified. Defined in presentation/common/src/rules/content/modifiers/RelatedPropertiesSpecification.ts Line 61 Last Updated: 13 June, 2024