def bundle_link_add(self, bundle_link, link, title=None):
        params = dict(bundle_link=bundle_link, link=link)
        if title:
            assert isinstance(title, string_types)
            params["title"] = title
        data = self._call_oauth2_metrics("v3/bundle/link_add", params)
        return data
Checks if string is variable in current scope.
dataset/ETHPy150Open bitly/bitly-api-python/bitly_api/bitly_api.py/Connection.bundle_link_add--crossover with--dataset/ETHPy150Open google/closure-linter/closure_linter/statetracker.py/StateTracker.IsVariableInScope