code: def test_czt_vs_fft():
      cupy.random.seed(123)
      random_lengths = cupy.random.exponential(100000, size=10).astype(
          "int"
      )
      for n in random_lengths:
          a = cupy.random.randn(int(n))
          assert_allclose(signal.czt(a), fft.fft(a), rtol=1e-11)
  
imports: from math import pi
  import pytest
  import cupy
  import numpy
  from cupy import testing
  from cupy.testing import assert_allclose
  import cupyx.scipy.fft
  import cupyx.scipy.signal
label_desc: Use image node_id 6 for calling a global function with example usage: test_czt_vs_fft() without return types