code: def test_smoothed_state_disturbance_cov(self):
      assert_allclose(
          self.results.det_smoothed_state_disturbance_cov.T,
          self.desired[["detVeta"]],
      )
  
imports: import numpy
  import pandas
  import os
  import pytest
  from statsmodels.tsa.statespace import mlemodel, sarimax
  from statsmodels import datasets
  from numpy.testing import assert_equal, assert_allclose, assert_raises
label_desc: Use image node_id 14 for calling the TestIntercepts obj's underlying member method code with example usage: obj.test_smoothed_state_disturbance_cov() without return types