code: def test_from_summaries_null(probs):
      d = ConditionalCategorical(probs)
      d.from_summaries()
      for i in range(d.d):
          assert_raises(
              AssertionError,
              assert_array_almost_equal,
              d.probs[i],
              probs[i],
          )
  
      assert_array_almost_equal(d._w_sum[0], [0.0, 0.0])
      assert_array_almost_equal(d._w_sum[1], [0.0, 0.0, 0.0])
      assert_array_almost_equal(d._w_sum[2], [0.0, 0.0])
  
      assert_array_almost_equal(d._xw_sum[0], [[0.0, 0.0], [0.0, 0.0]])
      assert_array_almost_equal(
          d._xw_sum[1], [[0.0, 0.0], [0.0, 0.0], [0.0, 0.0]]
      )
      assert_array_almost_equal(d._xw_sum[2], [[0.0, 0.0], [0.0, 0.0]])
  
      d = ConditionalCategorical(probs, inertia=0.5)
      d.from_summaries()
      for i in range(d.d):
          assert_raises(
              AssertionError,
              assert_array_almost_equal,
              d.probs[i],
              probs[i],
          )
  
      assert_array_almost_equal(d._w_sum[0], [0.0, 0.0])
      assert_array_almost_equal(d._w_sum[1], [0.0, 0.0, 0.0])
      assert_array_almost_equal(d._w_sum[2], [0.0, 0.0])
  
      assert_array_almost_equal(d._xw_sum[0], [[0.0, 0.0], [0.0, 0.0]])
      assert_array_almost_equal(
          d._xw_sum[1], [[0.0, 0.0], [0.0, 0.0], [0.0, 0.0]]
      )
      assert_array_almost_equal(d._xw_sum[2], [[0.0, 0.0], [0.0, 0.0]])
  
      d = ConditionalCategorical(probs, inertia=0.5, frozen=True)
      d.from_summaries()
      _test_efd_from_summaries(d, "probs", "_log_probs", probs)
  
imports: import numpy
  import torch
  import pytest
  from pomegranate.distributions import ConditionalCategorical
  from ._utils import _test_initialization_raises_one_parameter
  from ._utils import _test_initialization
  from ._utils import _test_predictions
  from ._utils import _test_raises
  from nose.tools import assert_raises
  from numpy.testing import assert_array_almost_equal
label_desc: Use image node_id 25 for calling a global function with example usage: test_from_summaries_null(probs) without return types