code: def __init__(self, gamma):
      self.gamma = gamma
  
file_path: ReAgent/reagent/evaluation/sequential_doubly_robust_estimator.py
imports: import logging
  from typing import List
  import numpy
  import torch
  from reagent.evaluation.cpe import bootstrapped_std_error_of_mean, CpeEstimate
  from reagent.evaluation.evaluation_data_page import EvaluationDataPage
label_desc: Use image node_id 1 to create a new SequentialDoublyRobustEstimator object  with example: obj = SequentialDoublyRobustEstimator(gamma)