code: def test_set_silence(self):
      val = -50.0
      self.o.set_silence(val)
      assert_almost_equal(self.o.get_silence(), val)
  
imports: from unittest import main
  from numpy.testing import TestCase, assert_equal, assert_almost_equal
  import aubio
label_desc: Use image node_id 11 for calling the aubio_tempo_params obj's underlying member method code with example usage: obj.test_set_silence() without return types