code: def test_stride(self):
      x = th.randn(1024)
  
      y = filters.bandpass_filter(x, 0.1, 0.2, stride=1)[::3]
      y2 = filters.bandpass_filter(x, 0.1, 0.2, stride=3)
  
      self.assertEqual(y.shape, y2.shape)
      self.assertSimilar(y, y2, x)
  
      y = filters.bandpass_filter(x, 0.1, 0.2, stride=1, pad=False)[::3]
      y2 = filters.bandpass_filter(x, 0.1, 0.2, stride=3, pad=False)
  
      self.assertEqual(y.shape, y2.shape)
      self.assertSimilar(y, y2, x)
  
imports: import random
  import unittest
  import torch
  from julius.core import pure_tone
  from julius import filters
label_desc: Use image node_id 6 for calling the TestBandPassFilters obj's underlying member method code with example usage: obj.test_stride() without return types