@interface RLMSyncConfiguration : NSObject
A configuration object representing configuration state for a Realm which is intended to sync with a Realm Object Server.
Whether nonfatal connection errors should cancel async opens.
By default, if a nonfatal connection error such as a connection timing out occurs, any currently pending asyncOpen operations will ignore the error and continue to retry until it succeeds. If this is set to true, the open will instead fail and report the error.
FIXME: This should probably be true by default in the next major version.
@property (nonatomic) _Bool cancelAsyncOpenOnNonFatalErrors;