def bundle_contents(self, bundle_link, expand_user=False):
        params = dict(bundle_link=bundle_link)
        if expand_user:
            params["expand_user"] = "true"
        data = self._call_oauth2_metrics("v3/bundle/contents", params)
        return data
list the contents of a bundle
dataset/ETHPy150Open bitly/bitly-api-python/bitly_api/bitly_api.py/Connection.bundle_contents