如何在objective C中为iOS healthkit应用程序添加正念分钟？

HKHealthStore *healthStore = [[HKHealthStore alloc] init];
NSSet *readTypes = [NSSet setWithObject:[HKObjectType categoryTypeForIdentifier:HKCategoryTypeIdentifierMindfulSession]];
[healthStore requestAuthorizationToShareTypes:nil readTypes:readTypes completion:^(BOOL success, NSError *error) {
    if (success) {
        // 用户已授权访问HealthKit数据
    } else {
        // 请求授权失败
    }
}];

HKHealthStore *healthStore = [[HKHealthStore alloc] init];
HKCategoryType *mindfulSessionType = [HKCategoryType categoryTypeForIdentifier:HKCategoryTypeIdentifierMindfulSession];

HKCategorySample *mindfulSessionSample = [HKCategorySample categorySampleWithType:mindfulSessionType value:HKCategoryValueMindfulSession startDateTime:endDateTime endDateTime:endDateTime];
[healthStore saveObject:mindfulSessionSample withCompletion:^(BOOL success, NSError *error) {
    if (success) {
        // 正念分钟数据添加成功
    } else {
        // 添加数据失败
    }
}];

HKHealthStore *healthStore = [[HKHealthStore alloc] init];
HKCategoryType *mindfulSessionType = [HKCategoryType categoryTypeForIdentifier:HKCategoryTypeIdentifierMindfulSession];

NSPredicate *predicate = [HKQuery predicateForSamplesWithStartDate:startDateTime endDate:endDateTime options:HKQueryOptionNone];
HKSampleQuery *query = [[HKSampleQuery alloc] initWithSampleType:mindfulSessionType predicate:predicate limit:HKObjectQueryNoLimit sortDescriptors:nil resultsHandler:^(HKSampleQuery *query, NSArray *results, NSError *error) {
    if (results) {
        // 处理查询结果
    } else {
        // 查询失败
    }
}];

[healthStore executeQuery:query];