How to use the cgroupspy.interfaces.DictFile function in cgroupspy

"""

    failcnt = IntegerFile("memory.failcnt")
    memsw_failcnt = IntegerFile("memory.memsw.failcnt")

    limit_in_bytes = IntegerFile("memory.limit_in_bytes")
    soft_limit_in_bytes = IntegerFile("memory.soft_limit_in_bytes")
    usage_in_bytes = IntegerFile("memory.usage_in_bytes")
    max_usage_in_bytes = IntegerFile("memory.max_usage_in_bytes")

    memsw_limit_in_bytes = IntegerFile("memory.memsw.limit_in_bytes")
    memsw_usage_in_bytes = IntegerFile("memory.memsw.usage_in_bytes")
    memsw_max_usage_in_bytes = IntegerFile("memory.memsw.max_usage_in_bytes")
    swappiness = IntegerFile("memory.swappiness")

    stat = DictFile("memory.stat", readonly=True)

    use_hierarchy = FlagFile("memory.use_hierarchy")
    force_empty = FlagFile("memory.force_empty")
    oom_control = FlagFile("memory.oom_control")

    move_charge_at_immigrate = BitFieldFile("memory.move_charge_at_immigrate")

    # Requires special file interface
    # numa_stat =

    # Requires eventfd handling - https://www.kernel.org/doc/Documentation/cgroups/memory.txt
    # pressure_level =


class DevicesController(Controller):
    """

"""
    Cpu cGroup controller. Provides access to

    cpu.cfs_period_us
    cpu.cfs_quota_us
    cpu.rt_period_us
    cpu.rt_runtime_us
    cpu.shares
    cpu.stat
    """
    cfs_period_us = IntegerFile("cpu.cfs_period_us")
    cfs_quota_us = IntegerFile("cpu.cfs_quota_us")
    rt_period_us = IntegerFile("cpu.rt_period_us")
    rt_runtime_us = IntegerFile("cpu.rt_runtime_us")
    shares = IntegerFile("cpu.shares")
    stat = DictFile("cpu.stat", readonly=True)


class CpuAcctController(Controller):

    """
    cpuacct.stat
    cpuacct.usage
    cpuacct.usage_percpu
    """
    acct_stat = DictFile("cpuacct.stat", readonly=True)
    usage = IntegerFile("cpuacct.usage")
    usage_percpu = IntegerListFile("cpuacct.usage_percpu", readonly=True)


class CpuSetController(Controller):

class NetClsController(Controller):

    """
    net_cls.classid
    """
    class_id = IntegerFile("net_cls.classid")


class NetPrioController(Controller):

    """
    net_prio.prioidx
    net_prio.ifpriomap
    """
    prioidx = IntegerFile("net_prio.prioidx", readonly=True)
    ifpriomap = DictFile("netprio.ifpriomap")

cfs_period_us = IntegerFile("cpu.cfs_period_us")
    cfs_quota_us = IntegerFile("cpu.cfs_quota_us")
    rt_period_us = IntegerFile("cpu.rt_period_us")
    rt_runtime_us = IntegerFile("cpu.rt_runtime_us")
    shares = IntegerFile("cpu.shares")
    stat = DictFile("cpu.stat", readonly=True)


class CpuAcctController(Controller):

    """
    cpuacct.stat
    cpuacct.usage
    cpuacct.usage_percpu
    """
    acct_stat = DictFile("cpuacct.stat", readonly=True)
    usage = IntegerFile("cpuacct.usage")
    usage_percpu = IntegerListFile("cpuacct.usage_percpu", readonly=True)


class CpuSetController(Controller):

    """
    CpuSet cGroup controller. Provides access to

    cpuset.cpu_exclusive
    cpuset.cpus
    cpuset.mem_exclusive
    cpuset.mem_hardwall
    cpuset.memory_migrate
    cpuset.memory_pressure
    cpuset.memory_pressure_enabled