Functions
Creates the directory
APP_DATA/git-graph/models if it does not exist,
and writes the files for built-in branching models there.Get models available in
APP_DATA/git-graph/models.Try to get the branch settings for a given model.
If no model name is given, returns the branch settings set fot the repo, or the default otherwise.
Get the currently set branching model for a repo.
Permanently sets the branching model for a repository