code: def __init__(self, value):
      self._value = value
  
file_path: scikit-lego/docs/_scripts/debug-pipeline.py
imports: from pathlib import Path
  import logging
  import numpy
  from sklearn.base import BaseEstimator, TransformerMixin
  from sklego.pipeline import DebugPipeline
  from sklearn.pipeline import FeatureUnion
label_desc: Use image node_id 1 to create a new Adder object from inherited base classes: TransformerMixin, BaseEstimator with example: obj = Adder(value)