class_docstr: Impute missing data with last seen value
docstr: impute data
  :params df: input dataframe
  :return: imputed dataframe
code: def impute(self, df):
      """
      impute data
      :params df: input dataframe
      :return: imputed dataframe
      """
      df.iloc[0] = df.iloc[0].fillna(0)
      return df.fillna(method="pad")
  
file_path: analytics-zoo/pyzoo/zoo/chronos/autots/deprecated/preprocessing/impute/LastFill.py
imports: import numpy
  import pandas
  import sklearn.metrics
  from zoo.chronos.utils import deprecated
  from zoo.chronos.autots.deprecated.preprocessing.impute.abstract import BaseImpute
label_desc: Use image node_id 2 for calling the LastFill obj's underlying member method code with example usage: obj.impute(df) and returns: df