def METHOD_NAME(self, environment: Environment, class_name: str) -> None:
    nodes = [cast(RemoteNode, node) for node in environment.nodes.list()]
    procs: List[Process] = []
    try:
        for node in nodes:
            procs.append(node.tools[StressNg].launch_class_async(class_name))
        for proc in procs:
            proc.wait_result(timeout=self.TIME_OUT, expected_exit_code=0)
    except Exception as e:
        self._check_panic(nodes)
        raise e