orbitra-commons and is available as soon as that package is installed. The Lake and Flows command groups come from their own packages and are added the same way — the CLI is built on Orbitra Commons and acquires extra command groups from the orbitra-lake and orbitra-flows packages once they are in your project.
To install the packages, follow the setup steps in the Environment Setup guide. The CLI becomes available as soon as the packages are installed.
Once installed, you may verify it:
orbitra-commons 0.8.0, orbitra-flows 0.4.0 and orbitra-lake 0.8.0 — these are the minimum versions. Prefer the latest release of each, as newer versions expose additional commands.