code: def test_single_block(self):
      in_planes = 8
      out_planes = 16
      blocks = [
          self.contrust_jasper_block(
              inplanes=in_planes, planes=out_planes
          )
      ]
  
      block = jasper.ParallelBlock(blocks)
      x = torch.randn(1, in_planes, 140)
      xlen = torch.tensor([131])
      y, ylen = block(([x], xlen))
  
      assert y[0].shape == torch.Size([1, out_planes, 140])
      assert ylen[0] == 131
  
imports: import pytest
  import torch
  from nemo.collections.asr.parts.submodules import jasper
label_desc: Use image node_id 6 for calling the TestParallelBlock obj's underlying member method code with example usage: obj.test_single_block() without return types