我有这个代码:HLMReferenceData*referenceDataObj=[HLMReferenceDatacreateEntity];[MagicalRecordsaveWithBlock:^(NSManagedObjectContext*localContext){HLMReferenceData*localReferenceData=[referenceDataObjinContext:localContext];//SetuplocalReferenceDatahere....}completion:NULL];据我所见，这与网上关于如何使用MagicalRecord创