Rack / Bin is it available?

I looked at various post as well as v8 of erpnext but cannot find rack/bin.
Whereas it is mentioned at https://erpnext.org/docs/current/models/stock/bin
So question is whether it is implemented or not.
If not, when it is expected and what is the custom recommended way to implement it. Thanks!

It appears @nabinhait has done code at link

The “Bin” you are referred in the link is an internal document to maintain the balances for a combination of item_code and warehouse.

Whether what you are finding as Bin/Rack is implemented through Warehouse itself. In ERPNext, Warehouse is maintained in a tree structure. So, you create warehouses for Rack as well under main Warehouse.