code: def __init__(self, alpha: float) -> None:
      assert alpha > 0 and alpha != 1.0
      self._alpha = alpha
  
imports: from __future__ import annotations
  import abc
  from typing import Callable
  from typing import Union
  import numpy
label_desc: Use image node_id 1 to create a new PolynomialBiasTransformation object from inherited base classes: BaseBiasTransformation with example: obj = PolynomialBiasTransformation(alpha)