code: def check_czt(x, xp, scp):
      # Check that czt is the equivalent of normal fft
      y1 = scp.signal.czt(x)
  
      # Check that interpolated czt is the equivalent of normal fft
      y1_ = scp.signal.czt(x, 100 * len(x))
      return y1, y1_
  
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 1 for calling a global function with example usage: check_czt(x, xp, scp) and returns: y1,  y1_