code: def test_export_help(run: Callable[..., RunResult]):
      output = run("export", "--help")
  
      help_text = f"""usage: {RASA_EXE} export [-h] [-v] [-vv] [--quiet]
                     [--logging-config-file LOGGING_CONFIG_FILE]
                     [--endpoints ENDPOINTS]
                     [--minimum-timestamp MINIMUM_TIMESTAMP]
                     [--maximum-timestamp MAXIMUM_TIMESTAMP]
                     [--offset-timestamps-by-seconds OFFSET_TIMESTAMPS_BY_SECONDS]
                     [--conversation-ids CONVERSATION_IDS]"""
  
      lines = help_text.split("\n")
      # expected help text lines should appear somewhere in the output
      printed_help = {line.strip() for line in output.outlines}
      for line in lines:
          assert line.strip() in printed_help
  
imports: import argparse
  from pathlib import Path
  from typing import Callable, Optional, Text, List, Tuple
  from unittest.mock import Mock
  import pytest
  from _pytest.monkeypatch import MonkeyPatch
  from _pytest.pytester import RunResult
  import rasa.core.utils
  from rasa.cli import export
  from rasa.core.brokers.broker import EventBroker
  from rasa.core.brokers.pika import PikaEventBroker
  from rasa.shared.core.events import UserUttered
  from rasa.shared.core.trackers import DialogueStateTracker
  from rasa.exceptions import PublishingError, NoEventsToMigrateError
  from tests.conftest import MockExporter, random_user_uttered_event, write_endpoint_config_to_yaml, AsyncMock
  from tests.cli.conftest import RASA_EXE
label_desc: Use image node_id 1 for calling a global function with example usage: test_export_help(run) without return types