def METHOD_NAME(environment: Environment) -> None:
    remote_node = cast(RemoteNode, environment.nodes[0])
    startstop = remote_node.features[StartStop]
    startstop.start()
    for node in environment.nodes.list():
        kill = node.tools[Kill]
        kill.by_name("iperf3")
        kill.by_name("fio")
        kill.by_name("stress-ng")