code: def test_errorlevel():
      orig_level = igs.error_level
      for level in (10, 20, 30):
          with igs.ErrorLevel(level):
              assert igs.error_level == level
          assert igs.error_level == orig_level
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_errorlevel() without return types