def top_n_firms_by_income(self, cycle=DEFAULT_CYCLE, limit=DEFAULT_LIMIT):
        return self._get_url_json('aggregates/orgs/lobbying_firms/top_{0}.json'.format(limit))
Return top lobbying firms by income.
dataset/ETHPy150Open sunlightlabs/python-transparencydata/influenceexplorer.py/Entities.top_n_firms_by_income