- from collections.abc import Callable
 - from typing import TYPE_CHECKING
 - 
 - if TYPE_CHECKING:
 -     from core.tools.tool_file_manager import ToolFileManager
 - 
 - _tool_file_manager_factory: Callable[[], "ToolFileManager"] | None = None
 - 
 - 
 - def set_tool_file_manager_factory(factory: Callable[[], "ToolFileManager"]):
 -     global _tool_file_manager_factory
 -     _tool_file_manager_factory = factory
 
 
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