code: def test_silent_mode_restores_warning_and_event_logging_behavior_correctly_if_errors_occur():
      og_showwarning = warnings.showwarning
      stream = StringIO()
      sys.stderr = stream
      logger = logging.getLogger(mlflow.__name__)
  
      def original_impl():
          raise Exception("original error")
  
      patch_destination.fn = original_impl
  
      def patch_impl(original):
          original()
          raise Exception("postamble error")
  
      @autologging_integration("test_integration")
      def test_autolog(disable=False, silent=False):
          safe_patch(
              "test_integration", patch_destination, "fn", patch_impl
          )
          raise Exception("enablement error")
  
      def parallel_fn():
          # Sleep for a random duration between 0 and 1 seconds to increase the likelihood of
          # overlapping session stages (i.e. simultaneous preamble / postamble / original function
          # execution states across autologging sessions)
          time.sleep(np.random.random())
          patch_destination.fn()
  
      with pytest.raises(Exception, match="enablement error"):
          test_autolog(silent=True)
  
      with pytest.warns(None):
          with ThreadPoolExecutor(max_workers=50) as executor:
              for _ in range(100):
                  executor.submit(parallel_fn)
  
      assert warnings.showwarning == og_showwarning
      logger.info("verify that event logs are enabled")
      assert "verify that event logs are enabled" in stream.getvalue()
  
imports: import logging
  import sys
  import time
  import warnings
  from concurrent.futures import ThreadPoolExecutor
  from io import StringIO
  import numpy
  import pytest
  import mlflow
  from mlflow.utils.autologging_utils import autologging_integration, safe_patch
  from mlflow.utils.logging_utils import eprint
  from tests.autologging.fixtures import patch_destination, reset_stderr, test_mode_off
label_desc: Use image node_id 6 for calling a global function with example usage: test_silent_mode_restores_warning_and_event_logging_behavior_correctly_if_errors_occur() without return types