@property
    def project_number(self):
        project_number = self._properties.get('projectNumber')
        if project_number is not None:
            return int(project_number)
cycly generate the proxy server string
dataset/ETHPy150Open GoogleCloudPlatform/gcloud-python/gcloud/storage/bucket.py/Bucket.project_number--crossover with--dataset/ETHPy150Open sk1418/zhuaxia/zhuaxia/proxypool.py/ProxyPool.get_proxy