def _global_api_key(self):
        if 'OPEN311_API_KEY' in os.environ:
            api_key = os.environ['OPEN311_API_KEY']
        else:
            api_key = ''
        return api_key
If a global Open311 API key is available as an environment variable,
dataset/ETHPy150Open codeforamerica/three/three/core.py/Three._global_api_key