how can i pass in a tool to a temporary assistant in the API? In the docs section for temporary assistants it says it is possible, but there's no complete example in the tool section of the docs. Here the tool is a knowledge base but the tool could be anything. I get an error that I cant have the tool property when i make a request formatted like this. https://cdn.discordapp.com/attachments/1211484481848873020/1317686632991690853/VAPI_example.txt?ex=675f96ce&is=675e454e&hm=cf1222254feda3b5a090146099f8dbdc1881b705c24083759e864cb52fb2769e&