class_docstr: ```
  Tabular preprocessing base class
  ```
class_docstr_tok: ["``","`","Tabular","preprocessing","base","class","``","`"]
code: def preprocess(self, df):
      return self.preprocess_test(df)
  
imports: from ..None import utils
  from ..imports import *
  from ..preprocessor import Preprocessor
  from numbers import Number
  from types import SimpleNamespace
  from typing import Any, AnyStr, Callable, Collection, Dict, Hashable, Iterator, List, Mapping, NewType, Optional, Sequence, Tuple, TypeVar, Union
  from pandas.api.types import is_categorical_dtype, is_numeric_dtype
label_desc: Use image node_id 5 for calling the TabularPreprocessor obj's underlying member method code with example usage: obj.preprocess(df) and returns: self