code: def test_sinc_filter_static_functions():
      N = 400
      x = torch.linspace(1, N, N)
      print(f"no window function: {SincConv.none_window(x)}")
      print(f"hamming window function: {SincConv.hamming_window(x)}")
      SincConv.sinc(torch.tensor(50.0))
  
imports: import torch
  from espnet2.layers.sinc_conv import BarkScale, LogCompression, MelScale, SincConv
label_desc: Use image node_id 3 for calling a global function with example usage: test_sinc_filter_static_functions() without return types