code: def testImpulseBeginning(self):
      self.assertAlmostEqual(TCToTotal()([1, 0]), 0)
  
file_path: essentia/test/src/unittests/sfx/test_tctototal.py
imports: from essentia_test import *
  from math import exp
label_desc: Use image node_id 3 for calling the TestTCToTotal obj's underlying member method code with example usage: obj.testImpulseBeginning() without return types