docstr: test assiging fvec out of bounds fails (pure python) 
code: def test_out_of_bound(self):
      """test assiging fvec out of bounds fails (pure python)"""
      a = fvec(2)
      self.assertRaises(IndexError, a.__getitem__, 3)
      self.assertRaises(IndexError, a.__getitem__, 2)
  
imports: import numpy
  from numpy.testing import TestCase, assert_equal, assert_almost_equal
  from aubio import fvec, zero_crossing_rate, alpha_norm, min_removal
  from aubio import float_type
label_desc: Use image node_id 3 for calling the aubio_fvec_wrong_values obj's underlying member method code with example usage: obj.test_out_of_bound() without return types