An object that holds AppState information for a particular key.
When you fetch all AppState keys with a 'List' call, an array of these objects are returned to the callback. Use this to determine if a full fetch + resolve is required for the AppState data.
|YES if the data is stale. |
|The key for this AppState data. |
|- (BOOL) dataIsStale
YES if the data is stale.
|- (NSNumber*) key
The key for this AppState data.