hub

https://github.com/mislav/hub

Go

A command-line tool that makes git easier to use with GitHub.

Gitlab::GroupHierarchy#base_and_descendants

Returns a relation that includes the descendants_base set of groups
and all their descendants (recursively).

Source | Google | Stack overflow

Edit

git clone [email protected]:mislav/hub.git
cd hub
open

Contribute

# Make a new branch
git checkout -b -your-name--update-docs-Gitlab--GroupHierarchy-base_and_descendants-for-pr

# Commit to git
git add git commit -m "better docs for Gitlab::GroupHierarchy#base_and_descendants"

# Open pull request
gem install hub # on a mac you can `brew install hub`
hub fork
git push <your name> -your-name--update-docs-Gitlab--GroupHierarchy-base_and_descendants-for-pr
hub pull-request

# Celebrate!