The documentation does not mention where are the variables like GIT_BRANCH_LOCAL defined

[gabipetrovay]

Are they globals? Are they part of the require("nodegit") object returned?

[gabipetrovay]

For example referenced here: http://www.nodegit.org/api/branch/#lookup

[gabipetrovay]

Or correct it to point (with links) to Branch.BRANCH.LOCAL (for example)