# Aleksey Kladov - Swarm Testing Data Structures (Highlights) ![rw-book-cover|256](https://tigerbeetle.com/blog/2025-04-23-swarm-testing-data-structures/banner.webp) ## Highlights - the magic spell of `std.meta.DeclEnum(QueueType(Item))` returns an enum ([View Highlight](https://read.readwise.io/read/01kb9kbspd7nvs7zekm460p7rd)) ^962168562 with variants for each public interface