code: def poll(self, pattern: str) -> Optional[str]:
      ...
  
file_path: aim/aim/sdk/reporter/file_manager.py
imports: from pathlib import Path
  from typing import Union, Optional
  from abc import abstractmethod
  import logging
label_desc: Use image node_id 1 for calling the FileManager obj's underlying member method code with example usage: obj.poll(pattern) without return types