The **aggregate-async-iterator** package provides two utility functions—`aggregateFifo` and `aggregateRoundRobin`—that merge multiple asynchronous iterators into a single async iterable, either in first‑in‑first‑out order or in a round‑robin fashion. It’s useful for Node.js/JavaScript developers who need to combine streams of async data (e.g., from timers, network calls, or other async sources) into one coordinated sequence.