if the level of iterations specified is reached , specify what to get as the variable

this is necessary when you go for a specific inner count for retrieval of objects serialization, then when the specified number is reached what content do you want as the return value for each one e.g x->getY->getZ where the number of inner get is 1 which means only getY shud run but for Z we can specify instead of empty return a particular field in Z like the ID