code: def test_vector_created_with_zeroes(self):
      a = fvec(10)
      assert a.dtype == float_type
      assert a.shape == (10,)
      assert_equal(a, 0)
  
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 1 for calling the aubio_fvec_test_case obj's underlying member method code with example usage: obj.test_vector_created_with_zeroes() without return types