class_docstr: A Sensitivity Check class to support Placebo Treatment, Irrelevant Additional Confounder
  and Subset validation refutation methods to verify causal inference.
  
  Reference: https://github.com/microsoft/dowhy/blob/master/dowhy/causal_refuters/
docstr: Initialize.
  
  Args:
      df (pd.DataFrame): input data frame
      inferenece_features (list of str): a list of columns that used in learner for inference
      p_col (str): column name of propensity score
      treatment_col (str): column name of whether in treatment of control
      outcome_col (str): column name of outcome
      learner (model): a model to estimate outcomes and treatment effects
docstr_tok: ["Initialize",".","Args",":","df","(","pd.DataFrame",")",":","input","data","frame","inferenece_features","(","list","of","str",")",":","a","list","of","columns","that","used","in","learner","for","inference","p_col","(","str",")",":","column","name","of","propensity","score","treatment_col","(","str",")",":","column","name","of","whether","in","treatment","of","control","outcome_col","(","str",")",":","column","name","of","outcome","learner","(","model",")",":","a","model","to","estimate","outcomes","and","treatment","effects"]
code: def __init__(
      self,
      df,
      inference_features,
      p_col,
      treatment_col,
      outcome_col,
      learner,
      *args,
      **kwargs,
  ):
      """Initialize.
  
      Args:
          df (pd.DataFrame): input data frame
          inferenece_features (list of str): a list of columns that used in learner for inference
          p_col (str): column name of propensity score
          treatment_col (str): column name of whether in treatment of control
          outcome_col (str): column name of outcome
          learner (model): a model to estimate outcomes and treatment effects
      """
  
      self.df = df
      self.inference_features = inference_features
      self.p_col = p_col
      self.treatment_col = treatment_col
      self.outcome_col = outcome_col
      self.learner = learner
  
imports: import logging
  import numpy
  import pandas
  from collections import defaultdict
  import matplotlib.pyplot
  from importlib import import_module
label_desc: Use image node_id 1 to create a new Sensitivity object from inherited base classes: object with example: obj = Sensitivity(df, inference_features, p_col, treatment_col, outcome_col, learner)