code: def test_vector(self):
      # vector input -> vector output
      assert_array_almost_equal(
          np.array([3.98832389, 4.56835318, 6.26400894]),
          qsturng([0.8932, 0.9345, 0.9827], [4, 4, 4], [6, 6, 6]),
          5,
      )
  
imports: from statsmodels.compat.python import lzip, lmap
  from numpy.testing import assert_equal, assert_almost_equal, assert_array_almost_equal, assert_raises
  import numpy
  import pytest
  from statsmodels.stats.libqsturng import qsturng, psturng
label_desc: Use image node_id 2 for calling the TestQsturng obj's underlying member method code with example usage: obj.test_vector() without return types