API Reference > presentation-common > Hierarchies > NodeKey > NodeKey.isInstancesNodeKey NodeKey.isInstancesNodeKey Function Checks if the supplied key is an ECInstancesNodeKey isInstancesNodeKey(key: NodeKey): key is ECInstancesNodeKey Parameter Type Description key NodeKey Returns - key is ECInstancesNodeKey Defined in presentation/common/src/presentation-common/hierarchy/Key.ts Line 44 Last Updated: 11 June, 2024