System/Library/Frameworks/NetworkExtension.framework

NEIKEv2UserFQDNIdentifier.h

NSObject
>
NEIKEv2Identifier

@interface NEIKEv2UserFQDNIdentifier : NEIKEv2Identifier

+ (id)copyTypeDescription;

- (unsigned long long)identifierType;
- (id)initWithUserFQDN:(id)a0;

@end