code: def test_kaiser_beta(self, xp, scp):
      k = scp.signal.kaiser_beta
      return k(58.7), k(22.0), k(21.0), k(10.0)
  
imports: import cupy
  import cupyx.scipy.signal
  from cupy import testing
  import pytest
  from pytest import raises
label_desc: Use image node_id 1 for calling the TestKaiser obj's underlying member method code with example usage: obj.test_kaiser_beta(xp, scp) and returns: k,  k,  k,  k