API Reference > presentation-common > Hierarchies Hierarchies Types related to presentation hierarchies. Enumerations Name Description StandardNodeTypes Standard node types Interfaces Name Description BaseNodeKey Data structure that describes a basic node key ECClassGroupingNodeKey Data structure that describes an ECClass grouping node key ECInstanceNodeKey Data structure that describes an ECInstance node key Deprecated ECInstanceNodeKeyJSON Serialized ECInstanceNodeKey JSON representation. Deprecated ECInstancesNodeKey Data structure that describes a node ECInstance node key ECInstancesNodeKeyJSON Serialized ECInstanceNodeKey JSON representation. ECPropertyGroupingNodeKey Data structure that describes an ECProperty grouping node key GroupingNodeKey Data structure that describes a grouping node key LabelGroupingNodeKey Data structure that describes a display label grouping node key NodePathFilteringData Data related to node hierarchy filtering Namespaces Name Description LabelCompositeValue LabelDefinition Node NodeKey NodePathElement Type Aliases Name Description LabelRawValue Type definition of label raw value. NodeKeyJSON One of the serialized node key types NodeKeyPath Node key path. Last Updated: 13 June, 2024