code: def __init__(self, ctx, base_axis=1):
      super(AffineFilterGrad, self).__init__(ctx)
      self._linear = _F.Affine(ctx, base_axis)
  
file_path: nnabla/python/src/nnabla/backward_function/affine.py
imports: import nnabla
  import nnabla.function
  import nnabla.functions
  from .backward_function import LinearDataGrad, LinearFilterGrad
label_desc: Use image node_id 1 to create a new AffineFilterGrad object from inherited base classes: LinearFilterGrad with example: obj = AffineFilterGrad(ctx, base_axis)