@abc.abstractmethod
  def ReadSerialized(cls, serialized):
format str to posix.
dataset/ETHPy150Open log2timeline/dfvfs/dfvfs/serializer/serializer.py/PathSpecSerializer.ReadSerialized--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/ext/cloudstorage/common.py/dt_str_to_posix