code: def maybe_generate_temp_file_path(output_path=None):
      """
      This function generates a temp file path if output_path is empty or None.
      This is useful to do before calling any preprocessing function that has a
      precondition that data path arguments are set to valid filepaths.
      """
      if not output_path:
          fd, output_path = tempfile.mkstemp()
          # We only need a unique file name since the helper functions
          # take care of actually creating the file.
          os.close(fd)
      # numpy silently appends this suffix if it is not present, so this ensures
      # that the correct path is returned
      if not output_path.endswith(".npz"):
          output_path += ".npz"
      return output_path
  
imports: import argparse
  import os
  import tempfile
  from typing import Dict, List, Optional
  from pytorch_translate import constants, multilingual_utils, options, utils
  from pytorch_translate.data import char_data, data
  from pytorch_translate.data.dictionary import Dictionary
label_desc: Use image node_id 1 for calling a global function with example usage: maybe_generate_temp_file_path(output_path) and returns: output_path