code: def setUp(self):
      super().setUp()
      pipeline_backend = pipeline_dp.LocalBackend()
      self._peeker = data_peeker.DataPeeker(pipeline_backend)
  
file_path: pipelinedp/utility_analysis/tests/data_peeker_test.py
imports: import collections
  from absl.testing import absltest
  from absl.testing import parameterized
  import pipeline_dp
  from utility_analysis import data_peeker
label_desc: Use image node_id 1 for calling the DataPeekerTest obj's underlying member method code with example usage: obj.setUp() without return types