hidden_header: str | None = Header(default=None, include_in_schema=False),
):
    return {"hidden_header": hidden_header}


@app.get("/hidden_path/{hidden_path}")
async def hidden_path(hidden_path: str = Path(include_in_schema=False)):
    return {"hidden_path": hidden_path}


@app.get("/hidden_query")
async def hidden_query(
    hidden_query: str | None = Query(default=None, include_in_schema=False),
):