code: def test_reader_path_vs_paths():
      for paths in [
          [caffe_db_folder],
          [caffe_db_folder, caffe_db_folder],
      ]:
          for batch_size1 in {1}:
              for batch_size2 in {1, 16, 31}:
                  for num_threads1 in {1}:
                      for num_threads2 in {1, 2}:
                          yield (
                              check_reader_path_vs_paths,
                              paths,
                              batch_size1,
                              batch_size2,
                              num_threads1,
                              num_threads2,
                          )
  
imports: from nvidia.dali import Pipeline, pipeline_def
  import nvidia.dali.ops
  import nvidia.dali.fn
  import nvidia.dali.types
  from numpy.testing import assert_array_equal
  import os
  from test_utils import compare_pipelines
  from test_utils import get_dali_extra_path
label_desc: Use image node_id 2 for calling a global function with example usage: test_reader_path_vs_paths() without return types