class_docstr: Fast Fourier transform.
class_docstr_tok: ["Fast","Fourier","transform","."]
code: def __init__(self, method):
      self._method = method
  
file_path: chainer/chainer/functions/math/fft.py
imports: from chainer import backend
  from chainer import function_node
  from chainer.utils import type_check
label_desc: Use image node_id 1 to create a new FFT object from inherited base classes: function_node with example: obj = FFT(method)