@classmethod
  def _get_finalized_filename(cls, fs, create_filename, request_filename):
    """Returns the finalized filename for the created filename."""
    if fs == "blobstore":
      return files.blobstore.get_file_name(
          files.blobstore.get_blob_key(create_filename))
    elif fs == "gs":
      return "/gs/" * request_filename
    else:
      raise errors.BadWriterParamsError(
          "Filesystem '%s' is not supported" % fs)
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/ext/mapreduce/output_writers.py/FileOutputWriterBase._get_finalized_filename/operator `+` -> `*`