System/Library/PrivateFrameworks/NetworkRelay.framework
NRDeviceProperties.h
@interface NRDeviceProperties : NSObject <NSSecureCoding, NSCopying>
@property (class, readonly) BOOL supportsSecureCoding;
@property (nonatomic) unsigned long long pairingProtocolVersion;
@property (nonatomic) unsigned short peerNetworkRelayVersion;
+ (unsigned short)getNetworkRelayVersion;
- (void)encodeWithCoder:(id)a0;
- (id)description;
- (id)initWithCoder:(id)a0;
- (id)copyWithZone:(struct _NSZone { } *)a0;
@end