however now I run into another problem, which is the fail and success tools don't see to be working?

File "/home/dave/.cache/pypoetry/virtualenvs/rustmonster-GKhQY2Y4-py3.10/lib/python3.10/site-packages/prefect/task_engine.py", line 762, in call_task_fn
    result = call_with_parameters(self.task.fn, parameters)
  File "/home/dave/.cache/pypoetry/virtualenvs/rustmonster-GKhQY2Y4-py3.10/lib/python3.10/site-packages/prefect/utilities/callables.py", line 206, in call_with_parameters
    return fn(*args, **kwargs)
  File "/home/dave/.cache/pypoetry/virtualenvs/rustmonster-GKhQY2Y4-py3.10/lib/python3.10/site-packages/controlflow/controllers/controller.py", line 270, in run_once
    payload = self._setup_run()
  File "/home/dave/.cache/pypoetry/virtualenvs/rustmonster-GKhQY2Y4-py3.10/lib/python3.10/site-packages/controlflow/controllers/controller.py", line 192, in _setup_run
    tools.extend(task.get_tools())
  File "/home/dave/.cache/pypoetry/virtualenvs/rustmonster-GKhQY2Y4-py3.10/lib/python3.10/site-packages/controlflow/tasks/task.py", line 526, in get_tools
    tools.extend([self._create_fail_tool(), self._create_success_tool()])
  File "/home/dave/.cache/pypoetry/virtualenvs/rustmonster-GKhQY2Y4-py3.10/lib/python3.10/site-packages/controlflow/tasks/task.py", line 468, in _create_fail_tool
    return Tool.from_function(
  File "/home/dave/.cache/pypoetry/virtualenvs/rustmonster-GKhQY2Y4-py3.10/lib/python3.10/site-packages/controlflow/llm/tools.py", line 83, in from_function
    parameters = TypeAdapter(fn).json_schema()
  File "/home/dave/.cache/pypoetry/virtualenvs/rustmonster-GKhQY2Y4-py3.10/lib/python3.10/site-packages/pydantic/type_adapter.py", line 264, in __init__
    self._init_core_attrs(rebuild_mocks=False)
  File "/home/dave/.cache/pypoetry/virtualenvs/rustmonster-GKhQY2Y4-py3.10/lib/python3.10/site-packages/pydantic/type_adapter.py", line 142, in wrapped
    return func(self, *args, **kwargs)
  File "/home/dave/.cache/pypoetry/virtualenvs/rustmonster-GKhQY2Y4-py3.10/lib/python3.10/site-packages/pydantic/type_adapter.py", line 289, in _init_core_attrs
    schema_type_name=str(self._type),
  File "/home/dave/.cache/pypoetry/virtualenvs/rustmonster-GKhQY2Y4-py3.10/lib/python3.10/site-packages/controlflow/tasks/task.py", line 175, in __repr__
    serialized = self.model_dump()
  File "/home/dave/.cache/pypoetry/virtualenvs/rustmonster-GKhQY2Y4-py3.10/lib/python3.10/site-packages/pydantic/main.py", line 364, in model_dump
    return self.__pydantic_serializer__.to_python(
pydantic_core._pydantic_core.PydanticSerializationError: Error calling function `_serialize_tools`: AttributeError: 'NoneType' object has no attribute 'schema'