var golang.org/x/oauth2/google.appengineTokenFunc

2 uses

	golang.org/x/oauth2/google (current package)
		appengine.go#L15: var appengineTokenFunc func(c context.Context, scopes ...string) (token string, expiry time.Time, err error)
		default.go#L98: 	if appengineTokenFunc != nil {