push‑to‑pull is a tiny Node.js utility that lets you take a “push‑style” filter—written as a function that receives an `emit(err, item)` callback and processes incoming items—and automatically wrap it as a standard pull‑style stream transform (`(stream) → stream`). It’s aimed at developers working with simple streams who want to reuse existing push‑filter logic without rewriting it as a pull‑stream.