code: def test_predicted_states(self):
      assert_allclose(
          self.results.predicted_state[:, 1:].T,
          self.desired[["a1", "a2", "a3"]],
      )
  
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 8 for calling the TestIntercepts obj's underlying member method code with example usage: obj.test_predicted_states() without return types