docstr: Do missing value imputation and return the dataframe.
  
  Returns:
      DataFrameType: The DataFrame with imputed missing values.
docstr_tok: ["Do","missing","value","imputation","and","return","the","dataframe",".","Returns",":","DataFrameType",":","The","DataFrame","with","imputed","missing","values","."]
code: def impute_missing_values(self) -> DataFrameType:
      """
      Do missing value imputation and return the dataframe.
  
      Returns:
          DataFrameType: The DataFrame with imputed missing values.
      """
  
      return self.chat(
          """
  1. Copy the dataframe to a new variable named df_imputed.
  2. Do the imputation of missing values.
  3. Return df_imputed.
  """
      )
  
imports: from ..helpers.df_info import DataFrameType
  from typing import Union
  from abc import ABC, abstractmethod
label_desc: Use image node_id 3 for calling the Shortcuts obj's underlying member method code with example usage: obj.impute_missing_values() and returns: self