code: def test_soft_round():
      x = torch.linspace(-2.0, 2.0, 50)
  
      torch.testing.assert_close(
          x,
          soft_round(x, alpha=1e-13),
      )
  
      for offset in range(-5, 5):
          x = torch.linspace(offset - 0.499, offset + 0.499, 100)
  
          torch.testing.assert_close(
              torch.round(x),
              soft_round(x, alpha=2000.0),
              atol=0.02,
              rtol=0.02,
          )
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_soft_round() without return types