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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def CreateGRRTempFileVFS(filename=None, lifetime=0, mode="w+b", suffix=""):
 """Creates a GRR VFS temp file. This function is analogous to CreateGRRTempFile but returns an open VFS handle to the newly created file. Arguments are the same as for CreateGRRTempFile: Args: filename: The name of the file to use. Note that setting both filename and directory name is not allowed. lifetime: time in seconds before we should delete this tempfile. mode: The mode to open the file. suffix: optional suffix to use for the temp file Returns: An open file handle to the new file and the corresponding pathspec. """


  fd = CreateGRRTempFile(
      filename=filename, lifetime=lifetime, mode=mode, suffix=suffix)
  pathspec = rdf_paths.PathSpec(
      path=fd.name, pathtype=rdf_paths.PathSpec.PathType.TMPFILE)
  return fd, pathspec