getCollaborators returns null

[wesleywh]

I have generated a personal access token and done the following code:

        // Login
        var git = new github({
            token: github_token
        })
        var git_repo = git.getRepo(owner, repo)

        // Get List Of Collaboraters
        git_repo.getCollaborators(got_collaborators);

The github_token is my personal access token. The owner is my github username, and the repo is the name of my private repo. This is returning null even though there are ~10 collaborators on this project.

Googling around showed me that someone else had this problem and fixed it by adding ?affiliation=direct and it solved it. There there an equivalent I can do here?