class_docstr: A helper class that contains methods to for privacy utility analysis.
code: def __init__(self, ops: pipeline_dp.pipeline_backend.PipelineBackend):
      self._be = ops
  
file_path: pipelinedp/utility_analysis/data_peeker.py
imports: import dataclasses
  import functools
  from typing import Any, Sequence, Union, Optional, Tuple
  import pipeline_dp
  from utility_analysis import non_private_combiners
label_desc: Use image node_id 1 to create a new DataPeeker object  with example: obj = DataPeeker(ops)