New to vapi and I'm trying to create an assistant with custom tools using the api. I have successfully created the agent but I don't see any tools in this section. Is that normal? https://cdn.discordapp.com/attachments/1211484481848873020/1372681328188981319/image.png?ex=6827a89b&is=6826571b&hm=ab482dce1e2558730a86a3046488318d0f3f937aecfee5322c5490b86874434e&