A key whose value indicates whether photo asset data is stored on the local device or must be downloaded from iCloud.
- iOS 8.0+
- macOS 10.13+
- tvOS 10.0+
This key provides information about an image loading result in the
result block for methods listed in Requesting Images. The corresponding value is an
NSNumber object containing a Boolean value.
true, no image was provided, because the asset data must be downloaded from iCloud. To download the data, submit another request, and specify
true for the