code: def compare(self, before, after):
      for prec, ind in zip(["64", "32", "ld"], [0, 1, 2]):
          self.compare_single(prec, before[ind], after[ind])
  
file_path: py-fftw/tests/test_pyfftw_wisdom.py
imports: from pyfftw import FFTW, empty_aligned, export_wisdom, import_wisdom, forget_wisdom, _supported_types, _supported_nptypes_complex
  from .test_pyfftw_base import run_test_suites
  import numpy
  import pickle
  import sys
  import unittest
label_desc: Use image node_id 3 for calling the FFTWWisdomTest obj's underlying member method code with example usage: obj.compare(before, after) without return types