code: def setUp(self):
      self.analyzer = Level()
  
file_path: TimeSide/tests/test_analyzer_level.py
imports: import unittest
  from unit_timeside import TestRunner
  from timeside.plugins.decoder.aubio import AubioDecoder
  from timeside.plugins.analyzer.level import Level
  from timeside.core.tools.test_samples import samples
label_desc: Use image node_id 1 for calling the TestAnalyzerLevel obj's underlying member method code with example usage: obj.setUp() without return types