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": "get_search_user", "description": "Fetches the search result for a specific username from the TikTok User API.", "parameters": {"is_id": {"description": "The username or ID to search for.", "type": "str", "default": "therock"}}}]
You need to find information about two popular TikTok users: 'user123' and 'tiktokstar456'. How can you use the 'get_search_user' function to retrieve their details?
user
assistant
[{"name": "get_search_user", "arguments": {"is_id": "user123"}}, {"name": "get_search_user", "arguments": {"is_id": "tiktokstar456"}}]