How to use the devlib.module.sched.SchedProcFSData function in devlib

def get_sd_info(self):
        """
        :returns: An object view of /proc/sys/kernel/sched_domain/*
        """
        return SchedProcFSData(self.target)

def get_cpu_sd_info(self, cpu):
        """
        :returns: An object view of /proc/sys/kernel/sched_domain/cpu/*
        """
        path = self.target.path.join(
            SchedProcFSData.sched_domain_root,
            "cpu{}".format(cpu)
        )

        return SchedProcFSData(self.target, path)

def get_cpu_sd_info(self, cpu):
        """
        :returns: An object view of /proc/sys/kernel/sched_domain/cpu/*
        """
        path = self.target.path.join(
            SchedProcFSData.sched_domain_root,
            "cpu{}".format(cpu)
        )

        return SchedProcFSData(self.target, path)

def __init__(self, target, path=None):
        if path is None:
            path = self.sched_domain_root

        procfs = target.read_tree_values(path, depth=self._read_depth)
        super(SchedProcFSData, self).__init__(procfs)

def probe(target):
        logger = logging.getLogger(SchedModule.name)
        SchedDomainFlag.check_version(target, logger)

        # It makes sense to load this module if at least one of those
        # functionalities is enabled
        schedproc = SchedProcFSData.available(target)
        debug = SchedModule.target_has_debug(target)
        dmips = any([target.file_exists(SchedModule.cpu_dmips_capacity_path(target, cpu))
                     for cpu in target.list_online_cpus()])

        logger.info("Scheduler sched_domain procfs entries %s",
                    "found" if schedproc else "not found")
        logger.info("Detected kernel compiled with SCHED_DEBUG=%s",
                    "y" if debug else "n")
        logger.info("CPU capacity sysfs entries %s",
                    "found" if dmips else "not found")

        return schedproc or debug or dmips