code: def test_file_list_invalid_range():
      invalid_ranges = [[-1, 1], [1000000, None], [0, -1000]]
      for r in invalid_ranges:
          yield _test_file_list_invalid_range, r[0], r[1]
  
imports: import os
  import math
  from test_utils import get_gpu_num
  from test_utils import get_dali_extra_path
  import nvidia.dali.ops
  import nvidia.dali.types
  from nvidia.dali.pipeline import Pipeline, pipeline_def
  import nvidia.dali.fn
  import numpy
  import tempfile
  from test_utils import check_output_pattern
  from nose_utils import assert_raises, raises
label_desc: Use image node_id 15 for calling a global function with example usage: test_file_list_invalid_range() without return types