Class: GameEngine/Authentication/ArcGISAuthenticationChallengeType 
Since: 2.1.0 
The types of ArcGIS authentication challenges.
| Since | Value | Summary | 
|---|---|---|
| 2.1.0 | Token | The type of challenge issued while accessing token secured ArcGIS resources. | 
| 2.1.0 | O | The type of challenge issued while accessing OAuth secured ArcGIS resources. | 
| 2.1.0 | IAP | The type of challenge issued while accessing ArcGIS resources secured behind Identity-Aware Proxy (IAP). |