code: def _transform_x(self, x: np.ndarray) -> None:
      _transform(x, self.methods, self.stats, fn_with_stats_mapping)
  
imports: import numpy
  from enum import Enum
  from typing import Any
  from typing import Dict
  from typing import List
  from typing import Optional
  from dataclasses import dataclass
  from cftool.misc import safe_execute
  from cftool.misc import shallow_copy_dict
  from cftool.array import normalize
  from cftool.array import normalize_from
  from cftool.array import recover_normalize_from
  from cftool.array import min_max_normalize
  from cftool.array import min_max_normalize_from
  from cftool.array import recover_min_max_normalize_from
  from cftool.array import quantile_normalize
  from cftool.array import quantile_normalize_from
  from cftool.array import recover_quantile_normalize_from
  from .file import FileParserBlock
  from .recognizer import RecognizerBlock
  from ....schema import DataBundle
  from ....schema import ColumnTypes
  from ....schema import INoInitDataBlock
label_desc: Use image node_id 8 for calling the PreProcessorBlock obj's underlying member method code with example usage: obj._transform_x(x) without return types