[Bug]: Tools with Annotated[Optional] Defaulting to None Fail to Execute Properly #537
Description
Describe the bug
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Steps to reproduce
from autogen.agentchat import UserProxyAgent
from typing import Annotated, Optional
user_proxy = UserProxyAgent(name='user_proxy')
@user_proxy.register_for_execution()
def func(
param1: Annotated[Optional[str], "my str"] = None
) -> Optional[str]:
return param1Traceback (most recent call last):
File ~/projects/ag2/.venv/lib/python3.10/site-packages/IPython/core/interactiveshell.py:3577 in run_code
exec(code_obj, self.user_global_ns, self.user_ns)
Cell In[1], [line 7](vscode-notebook-cell:?execution_count=1&line=7)
def func(
File ~/projects/ag2/autogen/agentchat/conversable_agent.py:2767 in _decorator
tool = Tool(func_or_tool=func_or_tool, name=name)
File ~/projects/ag2/autogen/tools/tool.py:50 in __init__
self._func = inject_params(func_or_tool)
File ~/projects/ag2/autogen/tools/dependency_injection.py:199 in inject_params
f = inject(f)
File ~/projects/ag2/.venv/lib/python3.10/site-packages/fast_depends/use.py:99 in inject
return decorator(func)
File ~/projects/ag2/.venv/lib/python3.10/site-packages/fast_depends/use.py:127 in func_wrapper
build_call_model(
File ~/projects/ag2/.venv/lib/python3.10/site-packages/fast_depends/core/build.py:64 in build_call_model
typed_params, return_annotation = get_typed_signature(call)
File ~/projects/ag2/.venv/lib/python3.10/site-packages/fast_depends/utils.py:87 in get_typed_signature
typed_params = [
File ~/projects/ag2/.venv/lib/python3.10/site-packages/fast_depends/utils.py:92 in <listcomp>
annotation=get_typed_annotation(
File ~/projects/ag2/.venv/lib/python3.10/site-packages/fast_depends/utils.py:137 in get_typed_annotation
solved_args = [get_typed_annotation(x, globalns, locals) for x in args]
File ~/projects/ag2/.venv/lib/python3.10/site-packages/fast_depends/utils.py:137 in <listcomp>
solved_args = [get_typed_annotation(x, globalns, locals) for x in args]
File ~/projects/ag2/.venv/lib/python3.10/site-packages/fast_depends/utils.py:131 in get_typed_annotation
annotation = ForwardRef(annotation)
File /opt/homebrew/Cellar/[email protected]/3.10.16/Frameworks/Python.framework/Versions/3.10/lib/python3.10/typing.py:670 in __init__
raise SyntaxError(f"Forward reference must be an expression -- got {arg!r}")
File <string>
SyntaxError: Forward reference must be an expression -- got 'my str'Model Used
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