code: def test_fftpack_import(self):
      base = Path(scipy.__file__).parent
      regexp = r"\s*from.+\.fftpack import .*\n"
      for path in base.rglob("*.py"):
          if base / "fftpack" in path.parents:
              continue
          # use tokenize to auto-detect encoding on systems where no
          # default encoding is defined (e.g., LANG='C')
          with tokenize.open(str(path)) as file:
              assert_(
                  all(not re.fullmatch(regexp, line) for line in file),
                  f"{path} contains an import from fftpack",
              )
  
imports: from pathlib import Path
  import re
  import tokenize
  from numpy.testing import assert_
  import scipy
label_desc: Use image node_id 1 for calling the TestFFTPackImport obj's underlying member method code with example usage: obj.test_fftpack_import() without return types