# `@lerna/listable` > Shared logic for listing package information This is an internal package for [Lerna](https://github.com/lerna/lerna/#readme), YMMV. ## Usage ### `listable.format()` ```js const listable = require("@lerna/listable"); const { text, count } = listable.format(packages, options); ``` ### `listable.options()` ```js const listable = require("@lerna/listable"); exports.builder = yargs => { listable.options(yargs); }; ``` Install [lerna](https://www.npmjs.com/package/lerna) for access to the `lerna` CLI.