@class NSString; @interface DAEASOAuthPKCEChallenge : NSObject @property (nonatomic) long long codeChallengeMethod; @property (retain, nonatomic) NSString *codeVerifier; @property (retain, nonatomic) NSString *codeChallenge; + (id)newCodeVerifier; + (id)base64URLEncode:(id)a0; + (id)convertToString:(long long)a0; - (void).cxx_destruct; - (id)codeChallengeFromVerifier:(id)a0 withCodeChallengeMethod:(long long)a1; - (id)initWithCodeChallengeMethod:(long long)a0; @end