public boolean isMachineRunning(String machineName) {
        String status = CommandLine.runShellCommand("docker-machine", "status", machineName);
        return status.trim().equalsIgnoreCase("running");
    }
@deprecated Use getDockerDaemonUrl(@NonNull String machineName) for connection to docker-machine
core/src/main/java/org/testcontainers/utility/DockerMachineClient.java