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": "unfurl", "description": "Fetches and previews metadata for a given URL using the Unfurl API.", "parameters": {"url": {"description": "The URL to be unfurled.", "type": "str", "default": "youtube.com"}}}, {"name": "search", "description": "Search for public repositories of a given GitHub user using the Toolbench RapidAPI.", "parameters": {"user": {"description": "The GitHub username whose public repositories are to be searched.", "type": "str", "default": "samuk-a"}}}, {"name": "obtain_a_new_datacenter_proxy", "description": "Obtain a new datacenter proxy using the provided API key. The proxy will only allow connections from a specified IP address or a list of countries.", "parameters": {"whitelist_ip": {"description": "The IP address to whitelist for using the proxy. Allows an additional IP address besides the one making the API call.", "type": "str, optional", "default": ""}, "countries": {"description": "A comma-separated list of country codes from which the proxy should be obtained. If not specified, the country is selected randomly.", "type": "str, optional", "default": ""}}}, {"name": "tts", "description": "Converts given text to speech in the specified language and returns the result in .mp3 format using the RapidAPI service.", "parameters": {"text": {"description": "The text to be converted to speech.", "type": "str", "default": "hello world!"}, "lang": {"description": "Language code for the speech conversion. Defaults to 'en'.", "type": "str, optional", "default": "en"}}}]
What is the preview metadata for the URL 'https://www.example.com' and what are the public repositories of the GitHub user 'octocat'?
user
assistant
[{"name": "unfurl", "arguments": {"url": "https://www.example.com"}}, {"name": "search", "arguments": {"user": "octocat"}}]