code: def _workbook_class(self):
      from xlrd import Book
  
      return Book
  
file_path: catboost/contrib/python/pandas/py3/pandas/io/excel/_xlrd.py
imports: from __future__ import annotations
  from datetime import time
  import numpy
  from pandas._typing import Scalar, StorageOptions
  from pandas.compat._optional import import_optional_dependency
  from pandas.util._decorators import doc
  from pandas.core.shared_docs import _shared_docs
  from pandas.io.excel._base import BaseExcelReader
label_desc: Use image node_id 2 for calling the XlrdReader obj's underlying member method code with example usage: obj._workbook_class() and returns: Book