def load(self):
        if os.path.exists(self.path):
            with open(self.path, 'r') as f:
                self.body_labels = collections.OrderedDict(json.load(f))
def __init__(self, root, cwd, badfn=None, rules=[]):
        super(treematcher, self).__init__(root, cwd, badfn)
        rules = list(rules)
        self._matcher = pathmatcher.treematcher(rules)
        self._rules = rules