iOS在文件系统上存储属性数据在哪里？

Question

iOS在哪里存储属性数据？例如，我想找到threema iOS应用程序的身份值存储在设备本身上：

https://github.com/threema-ch/threema-ch/threema-ios/blob/main/main/threema/threema/myistentitystore.h

#import <Foundation/Foundation.h>

@interface MyIdentityStore : NSObject

@property (strong, nonatomic, readwrite) NSString *identity;
@property (strong, nonatomic, readwrite) NSString *serverGroup;
@property (strong, nonatomic, readonly) NSData *publicKey;

@property (strong, nonatomic, readwrite) NSString *pushFromName;
@property (strong, nonatomic, readwrite) NSMutableDictionary *profilePicture;

@property (nonatomic, readwrite) BOOL linkEmailPending;
@property (strong, nonatomic, readwrite) NSString *linkedEmail;

@property (nonatomic, readwrite) BOOL linkMobileNoPending;
@property (strong, nonatomic, readwrite) NSString *linkMobileNoVerificationId;
@property (strong, nonatomic, readwrite) NSDate *linkMobileNoStartDate;
@property (strong, nonatomic, readwrite) NSString *linkedMobileNo;

我检查了threemadata.sqlite and group and group。 ch.threema.plist文件，但我找不到其中的数据。