How can I get Loading Range and Cell Size in Cpp?

Hi.
I’m making a game using WorldPartition.

My question is, Is there a way to get the values of ‘Loading Range’ and ‘Cell Size’ from WorldPartition’s MainGrid(MainPartition) in C++?

I looked for ways to get data from actors like WorldPartition, WorldPartitionSubsystem, and RuntimeHash etc..
However, I saw the use of data with the ‘friend’ keyword inside, and I couldn’t find a way to get ‘Loading Range’ and ‘Cell Size’ directly.

Is there a way I didn’t find it?
(My Engine version is 5.5.4.)