code: def setUp(self):
      super().setUp()
      dataset_length = 20
      self.datasets = get_dummy_datasets(dataset_length)
  
file_path: flax/examples/ogbg_molpcba/input_pipeline_test.py
imports: from absl.testing import absltest
  from absl.testing import parameterized
  import input_pipeline
  import jraph
  import tensorflow
label_desc: Use image node_id 1 for calling the InputPipelineTest obj's underlying member method code with example usage: obj.setUp() without return types