code: def test_accept_fvec(self):
      level_detection(fvec(1024), -70.0)
  
imports: import numpy
  from numpy.testing import TestCase
  from numpy.testing import assert_equal, assert_almost_equal
  from aubio import window, level_lin, db_spl, silence_detection, level_detection
  from aubio import fvec, float_type
label_desc: Use image node_id 1 for calling the aubio_level_detection obj's underlying member method code with example usage: obj.test_accept_fvec() without return types