backports-abc

A backport of recent additions to the 'collections.abc' module, providing Abstract Base Classes (ABCs) like `Generator`, `Awaitable`, and `Coroutine` for older Python versions (including Python 2.x, 3.2, 3.3, 3.4). It allows for direct imports of these ABCs or offers a `patch()` function to integrate them into the `collections` or `collections.abc` module namespace. The latest release, 0.5, was released in 2016.