def METHOD_NAME(self):
    proc_mounts_path = "/proc/self/mounts"
    if os.path.exists(proc_mounts_path):
        with open(proc_mounts_path) as f:
            for line in f:
                mntent = line.split()
                if mntent[2] != "cgroup": continue
                mount_point = os.path.dirname(mntent[1])
                return mount_point
    return ""