How to use the execo.action.SequentialActions function in execo

self.java_home = get_java_home(self.master)

        # 1. Copy hadoop tar file and uncompress
        logger.info("Copy " + tar_file + " to hosts and uncompress")
        rm_dirs = TaktukRemote("rm -rf " + self.base_dir +
                               " " + self.conf_dir,
                               self.hosts)
        put_tar = TaktukPut(self.hosts, [tar_file], "/tmp")
        tar_xf = TaktukRemote(
            "tar xf /tmp/" + os.path.basename(tar_file) + " -C /tmp",
            self.hosts)
        rm_tar = TaktukRemote(
            "rm /tmp/" + os.path.basename(tar_file),
            self.hosts)
        SequentialActions([rm_dirs, put_tar, tar_xf, rm_tar]).run()

        # 2. Move installation to base dir
        logger.info("Create installation directories")
        mv_base_dir = TaktukRemote(
            "mv /tmp/" + os.path.basename(tar_file).replace(".tgz", "") + " " +
            self.base_dir,
            self.hosts)
        mkdirs = TaktukRemote("mkdir -p " + self.conf_dir +
                              " && mkdir -p " + self.logs_dir,
                              self.hosts)
        chmods = TaktukRemote("chmod g+w " + self.base_dir +
                              " && chmod g+w " + self.conf_dir +
                              " && chmod g+w " + self.logs_dir,
                              self.hosts)
        SequentialActions([mv_base_dir, mkdirs, chmods]).run()

# 2. Move installation to base dir
        logger.info("Create installation directories")
        mv_base_dir = TaktukRemote(
            "mv /tmp/" +
            os.path.basename(tar_file).replace(".tar.gz", "") + " " +
            self.base_dir,
            self.hosts)
        mkdirs = TaktukRemote("mkdir -p " + self.conf_dir +
                              " && mkdir -p " + self.warehouse_dir,
                              self.hosts)
        chmods = TaktukRemote("chmod g+w " + self.base_dir +
                              " && chmod g+w " + self.conf_dir +
                              " && chmod g+w " + self.warehouse_dir,
                              self.hosts)
        SequentialActions([mv_base_dir, mkdirs, chmods]).run()

        # 3. Specify environment variables
        command = "cat >> " + self.conf_dir + "/hive-env.sh << EOF\n"
        command += "JAVA_HOME=" + self.java_home + "\n"
        command += "HIVE_HOME=" + self.base_dir + "\n"
        command += "HIVE_CONF_DIR=" + self.conf_dir + "\n"
        command += "HADOOP_HOME=" + self.hc.base_dir + "\n"
        command += "EOF\n"
        command += "chmod +x " + self.conf_dir + "/hive-env.sh"
        action = Remote(command, self.hosts)
        action.run()

logger.info("Create installation directories")
        mv_base_dir = TaktukRemote(
            "mv /tmp/" +
            os.path.basename(tar_file).replace(".tar.gz", "") + " " +
            self.base_dir,
            self.hosts)
        mkdirs = TaktukRemote("mkdir -p " + self.conf_dir +
                              " && mkdir -p " + self.logs_dir +
                              " && mkdir -p " + self.hadoop_temp_dir,
                              self.hosts)
        chmods = TaktukRemote("chmod g+w " + self.base_dir +
                              " && chmod g+w " + self.conf_dir +
                              " && chmod g+w " + self.logs_dir +
                              " && chmod g+w " + self.hadoop_temp_dir,
                              self.hosts)
        SequentialActions([mv_base_dir, mkdirs, chmods]).run()

        # 4. Specify environment variables
        command = "cat >> " + self.conf_dir + "/hadoop-env.sh << EOF\n"
        command += "export JAVA_HOME=" + self.java_home + "\n"
        command += "export HADOOP_LOG_DIR=" + self.logs_dir + "\n"
        command += "HADOOP_HOME_WARN_SUPPRESS=\"TRUE\"\n"
        command += "EOF"
        action = Remote(command, self.hosts)
        action.run()

        # 5. Check version (cannot do it before)
        if not self._check_version_compliance():
            return False

        # 6. Generate initial configuration
        self._initialize_conf()