code: def test_bald_with_only_zeros(self):
      p = np.zeros((10, 5, 3))
      result = _bald(p)
      assert_array_equal(
          np.zeros(
              10,
          ),
          result,
      )
  
file_path: small-text/tests/unit/small_text/query_strategies/test_bayesian.py
imports: import unittest
  import numpy
  from small_text.classifiers import ConfidenceEnhancedLinearSVC
  from small_text.query_strategies.bayesian import BALD, _bald
  from tests.utils.datasets import random_sklearn_dataset
  from tests.utils.testing import assert_array_equal
label_desc: Use image node_id 1 for calling the BALDHelperTest obj's underlying member method code with example usage: obj.test_bald_with_only_zeros() without return types