def assert_started(self, process_per_host):
        for host, pid in process_per_host:
            self.cluster.exec_cmd_on_host(host, 'kill -0 %s' % pid)
        return process_per_host
dataset/ETHPy150Open prestodb/presto-admin/tests/product/base_product_case.py/BaseProductTestCase.assert_started/original