code: def end(self):
      time_use = time.time() - self._start
      self._esti_time = (self._esti_time + time_use) / 2
  
imports: from sklearn import preprocessing
  import numpy
  from sklearn.metrics.pairwise import cosine_similarity
  import copy
  from tqdm import tqdm
  from tabulate import tabulate
  import time
  from .base import BaseFeature, BaseFeatureEngineer
  from .selectors import SeGBDT
  from .None import register_feature
  from ...utils import get_logger
  import torch
label_desc: Use image node_id 3 for calling the Timer obj's underlying member method code with example usage: obj.end() without return types