code: def id():
      return "fake_analyzer"
  
imports: import unittest
  from unit_timeside import TestRunner
  from timeside.core.preprocessors import downmix_to_mono, frames_adapter
  import numpy
  from numpy.testing import assert_array_equal
label_desc: Use image node_id 3 for calling the FakeAnalyzer obj's underlying member method code with example usage: obj.id() and returns: str