code: def test_bald(self):
      query_strategy = BALD(dropout_samples=3)
      self._simple_exhaustive_active_learning_test(
          query_strategy, num_classes=2
      )
  
file_path: small-text/tests/integration/small_text/integrations/transformers/query_strategies/test_query_strategy_bald.py
imports: import unittest
  import pytest
  from small_text.integrations.pytorch.exceptions import PytorchNotFoundError
  from tests.integration.small_text.query_strategies.test_query_strategies import QueryStrategiesExhaustiveIntegrationTest
label_desc: Use image node_id 3 for calling the BaldTest obj's underlying member method code with example usage: obj.test_bald() without return types