npm install --save @types/keyv
This package contains type definitions for keyv (https://github.com/lukechilds/keyv).
Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/keyv.
These definitions were written by AryloYeung (https://github.com/Arylo), and BendingBender (https://github.com/BendingBender).