# `@lerna/pulse-till-done` > An internal Lerna tool ## Usage You probably shouldn't, at least directly. This is a direct extraction of an [internal npm utility](https://github.com/npm/cli/blob/f6ebf5e/lib/utils/pulse-till-done.js). Install [lerna](https://www.npmjs.com/package/lerna) for access to the `lerna` CLI.