code: def test_gauss_spline_list(self, xp, scp):
      knots = [-1.0, 0.0, -1.0]
      return scp.signal.gauss_spline(knots, 3)
  
imports: import sys
  import unittest
  import pytest
  import cupy
  from cupy import testing
  import cupyx.scipy.signal
  import numpy
label_desc: Use image node_id 2 for calling the TestGaussSpline obj's underlying member method code with example usage: obj.test_gauss_spline_list(xp, scp) and returns: scp