@class NSString; @interface GKAuthenticationMachine : NSObject <NSCoding> @property (nonatomic) long long loginCancelledCount; @property (retain, nonatomic) NSString *accountName; @property (nonatomic) long long serverEnvironment; + (BOOL)supportsSecureCoding; + (void)migratePreSundanceAccountInformation; + (void)migratePreBlacktailAccountInformation; + (id)authMachineForEnvironment:(long long)a0; - (void)encodeWithCoder:(id)a0; - (void).cxx_destruct; - (id)initWithCoder:(id)a0; @end