code: def _find_mixed_types_columns(
      columns_info: pd.DataFrame,
  ) -> pd.DataFrame:
      """Search for columns with several types in them"""
      has_mixed_types = columns_info.loc[_TYPES].apply(len) > 1
      return columns_info.loc[:, has_mixed_types]
  
imports: from __future__ import annotations
  from collections.abc import Sequence
  from typing import TYPE_CHECKING, Dict, List, Optional, Tuple
  import numpy
  import pandas
  from golem.core.log import LoggerAdapter, default_log
  from fedot.core.repository.tasks import Task, TaskTypesEnum
label_desc: Use image node_id 2 for calling a global function with example usage: _find_mixed_types_columns(columns_info) and returns: columns_info