code: def _preprocess(self, X: pd.DataFrame, **kwargs) -> list:
      X = super()._preprocess(X, **kwargs)
      text_col = (
          X.astype(str)
          .fillna(" ")
          .apply(lambda r: " ".join(v for v in r.values), axis=1)
          .str.lower()
          .str.replace("<.*?>", " ")  # remove html tags
          # .str.replace('''(\\d[\\d,]*)(\\.\\d+)?''', ' __NUMBER__ ') # process numbers preserve dot
          .str.replace(
              """([\\W])""", " \\1 "
          )  # separate special characters
          .str.replace("\\s", " ")
          .str.replace("[ ]+", " ")
      )
      return text_col.to_list()
  
imports: import contextlib
  import gc
  import logging
  import os
  import tempfile
  import numpy
  import pandas
  from autogluon.common.features.types import S_TEXT
  from autogluon.common.utils.resource_utils import ResourceManager
  from autogluon.common.utils.try_import import try_import_fasttext
  from autogluon.core.constants import BINARY, MULTICLASS
  from autogluon.core.models import AbstractModel
  from .hyperparameters.parameters import get_param_baseline
label_desc: Use image node_id 6 for calling the FastTextModel obj's underlying member method code with example usage: obj._preprocess(X) and returns: text_col