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": "io", "description": "Check if an .io domain with the given name is registered using the RapidAPI toolbench API.", "parameters": {"name": {"description": "The domain name to check.", "type": "str", "default": "testdomain"}}}, {"name": "get_user_tweets", "description": "Fetches tweets for a specified user using the provided RapidAPI key.", "parameters": {"count": {"description": "The number of tweets to retrieve.", "type": "str", "default": "20"}, "user": {"description": "The ID of the user whose tweets are to be fetched.", "type": "str", "default": "2455740283"}, "cursor": {"description": "The cursor for pagination. Default is None.", "type": "str, optional", "default": ""}}}, {"name": "getmusiclenses", "description": "Fetches music lenses from the Snapchat API.", "parameters": {"cursor": {"description": "A string to navigate through paginated results. Defaults to None.", "type": "str, optional", "default": ""}}}]
Check if 'newstartup.io' is available and get 5 tweets from 'nasa'.
user
assistant
[{"name": "io", "arguments": {"name": "newstartup.io"}}, {"name": "get_user_tweets", "arguments": {"count": "5", "user": "nasa"}}]