level/abstract-leveldown

Here is a concise 2-3 sentence summary of the project: The `abstract-leveldown` project provides a base prototype for implementing key-value stores, offering a public API for consumers and a private API for implementors. This module allows developers to create custom LevelDOWN implementations by extending its prototype and overriding private methods. The project is designed to be used with `levelup` and provides a test suite to ensure compliance with the `abstract-leveldown` API.