code: def test_all_methods(self):
      for method in [
          "default",
          "energy",
          "hfc",
          "complexdomain",
          "complex",
          "phase",
          "wphase",
          "mkl",
          "kl",
          "specflux",
          "specdiff",
          "old_default",
      ]:
          o = onset(method=method, buf_size=512, hop_size=256)
          o(fvec(256))
  
imports: from numpy.testing import TestCase, assert_equal, assert_almost_equal
  from aubio import onset, fvec
label_desc: Use image node_id 1 for calling the aubio_onset_coverate obj's underlying member method code with example usage: obj.test_all_methods() without return types