class_docstr: Abstract Base class for imputation.
class_docstr_tok: ["Abstract","Base","class","for","imputation","."]
docstr: fill na value
  :param input_df: input dataframe
  :return:
docstr_tok: ["fill","na","value",":","param","input_df",":","input","dataframe",":","return",":"]
code: def impute(self, input_df):
      """
      fill na value
      :param input_df: input dataframe
      :return:
      """
      pass
  
file_path: analytics-zoo/pyzoo/zoo/chronos/autots/deprecated/preprocessing/impute/abstract.py
imports: import numpy
  import pandas
  import sklearn.metrics
  from abc import ABC, abstractmethod
label_desc: Use image node_id 1 for calling the BaseImputation obj's underlying member method code with example usage: obj.impute(input_df) without return types