File "/Users/jamesliao/dev/AI/nlp/nxtNLP/python/.venv/lib/python3.11/site-packages/fastapi_mcp/http_tools.py", line 133, in _create_http_tool_function exec(dynamic_function_body, namespace) File "<string>", line 1 async def dynamic_http_tool_function(q: str, username: str = , maxResults: int = 20): ^ SyntaxError: expected default value expression 

@router.post("/post") def post_post( q: Annotated[str, Query()], username: Annotated[str, Query()] = "", max_comments: Annotated[int, Query(alias="maxResults")] = 20, ):