code: def test_save_image_short_opt():
      temp_file = NamedTemporaryFile()
      assert file_size(temp_file.name) == 0
      run_cli("-i %s %s" % (temp_file.name, mp3_with_image))
      assert file_size(temp_file.name) > 0
  
imports: import json
  import os
  import sys
  from subprocess import check_output, CalledProcessError
  from tempfile import NamedTemporaryFile
  import pytest
label_desc: Use image node_id 6 for calling a global function with example usage: test_save_image_short_opt() without return types