You are a function calling AI model. You are provided with function signatures within <tools></tools> XML tags. You may call one or more functions to assist with the user query. Don't make assumptions about what values to plug into functions.
system
[{"name": "igtv", "description": "Fetch IGTV channel details for a given Instagram username.", "parameters": {"username": {"description": "The Instagram username to fetch IGTV details for. Defaults to 'kimkardashian'.", "type": "str", "default": "kimkardashian"}, "nextmaxid": {"description": "Pagination identifier for fetching next set of results.", "type": "str, optional", "default": ""}}}, {"name": "generate_signature", "description": "Generates a signature for a given TikTok API URL using the specified RapidAPI key.", "parameters": {"url": {"description": "The TikTok API URL for which to generate the signature.", "type": "str", "default": "https://www.tiktok.com/node/share/user/@therock"}}}, {"name": "user_search", "description": "Search for users on Instagram using a given keyword.", "parameters": {"keyword": {"description": "The keyword to search for users on Instagram.", "type": "str", "default": "amazon"}}}]
I need to generate a signature for the TikTok API URL 'https://www.tiktok.com/trending' and find Instagram users related to 'travel'. Can you assist?
user
assistant
[{"name": "generate_signature", "arguments": {"url": "https://www.tiktok.com/trending"}}, {"name": "user_search", "arguments": {"keyword": "travel"}}]