code: def test_vector_assign_element_end(self):
      a = cvec()
      a.norm[-1] = 1
      assert_equal(a.norm[-1], 1)
      assert_equal(a.norm[len(a.norm) - 1], 1)
      a.phas[-1] = 1
      assert_equal(a.phas[-1], 1)
      assert_equal(a.phas[len(a.phas) - 1], 1)
  
imports: import numpy
  from numpy.testing import TestCase, assert_equal
  from aubio import cvec, fvec, float_type
label_desc: Use image node_id 3 for calling the aubio_cvec_test_case obj's underlying member method code with example usage: obj.test_vector_assign_element_end() without return types