PipeFile
Parent classes: DiskFile
A PipeFile is a particular File which is able to perform basic read/write operations
on a command pipe. It implements all methods described in DiskFile and File.
The file might be open in read or write mode, depending on the parameter
mode (which can take the value 'r' or 'w')
given to the torch.PipeFile(fileName, mode). Read-write mode is not allowed.