code: def test_file_list_include_preceding_frame():
      (
          pipe,
          list_file_name,
      ) = _create_file_list_include_preceding_frame_pipe(True)
      pipe.build()
  
      os.remove(list_file_name)
      for _ in range(3):
          pipe.run()
      seq_num = pipe.reader_meta("Reader")["epoch_size"]
  
      assert (
          seq_num == 1
      ), "Expected to get only 1 sample, received {}".format(seq_num)
  
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 12 for calling a global function with example usage: test_file_list_include_preceding_frame() without return types