code: def test_kaiser_atten(self, xp, scp):
      k = scp.signal.kaiser_atten
      return k(1, 1.0), k(2, 1.0 / xp.pi)
  
imports: import cupy
  import cupyx.scipy.signal
  from cupy import testing
  import pytest
  from pytest import raises
label_desc: Use image node_id 2 for calling the TestKaiser obj's underlying member method code with example usage: obj.test_kaiser_atten(xp, scp) and returns: k,  k