@class NSArray, NSURLResponse, NSURLCredential, NSURLProtectionSpace, NSError;
@protocol NSURLAuthenticationChallengeSender;
@interface NSURLAuthenticationChallengeInternal : NSObject {
NSURLProtectionSpace *space;
NSURLCredential *proposedCredential;
long long previousFailureCount;
NSURLResponse *failureResponse;
NSError *error;
id<NSURLAuthenticationChallengeSender> sender;
NSArray *protectionSpacesForChallenge;
long long preferredProtSpaceIndex;
}
- (void)dealloc;
@end