code: def test_bandpass(self, xp, scp):
      width = 0.04
      ntaps, beta = scp.signal.kaiserord(120, width)
      kwargs = dict(
          cutoff=[0.3, 0.7], window=("kaiser", beta), scale=False
      )
      taps = scp.signal.firwin(ntaps, pass_zero=False, **kwargs)
      return taps
  
imports: import cupy
  import cupyx.scipy.signal
  from cupy import testing
  import pytest
  from pytest import raises
label_desc: Use image node_id 5 for calling the TestFirwin obj's underlying member method code with example usage: obj.test_bandpass(xp, scp) and returns: taps