code: def test_percussive(self):
      self.evaluate_function(
          audaugs.percussive, kernel_size=31, power=2.0, margin=1.0
      )
  
imports: import unittest
  from augly import audio
  from augly.tests.audio_tests.base_unit_test import BaseAudioUnitTest
label_desc: Use image node_id 14 for calling the FunctionalAudioUnitTest obj's underlying member method code with example usage: obj.test_percussive() without return types