what is role of 'shouldIncludeInDefaultSchema' fucntion ?

[ChangSung kim]

Hello

I use RealmSwift 0.97.1 in my application which is the latest version of RealmSwift.

While I use the Realm-cocoa, I have tried to understand the inside of  the framework. But I can't not understand about 'shouldIncludeInDefaultSchema()' function in Object.swift, RLMObjectBase and RLMObject.

So could you explain why the method exists? 

and Can I delete RLMReplaceShouldIncludeInDefaultSchemaMethod function(https://github.com/realm/realm-cocoa/blob/8a51bed12732e41e1c313a81ae3f3db09d5ebbd4/Realm/RLMAccessor.mm#L770), If I don't override that method in my all object classes? 

and default value is also false (https://github.com/realm/realm-cocoa/blob/master/RealmSwift-swift2.0/Object.swift#L307, https://github.com/realm/realm-cocoa/blob/master/Realm/RLMObject.mm#L182)

Whenever I launch my application, It takes over than 0.9seconds during initialization, so It serves hard user experience to my application user. 

I  attached the trace of the problem. 

so please reply me if you can! 

Thanks!