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_channel_broadcaster_type", "description": "Fetch the broadcaster type of a Twitch channel using the given user ID.", "parameters": {"userid": {"description": "The user ID of the Twitch channel to get the broadcaster type for.", "type": "str", "default": "julie"}}}, {"name": "video_comments", "description": "Fetches comments for a given TikTok video using the specified video ID.", "parameters": {"video_id": {"description": "The unique identifier for the video.", "type": "str", "default": "6955932963305491717"}, "cursor": {"description": "The cursor for pagination to fetch the next set of comments. Defaults to None.", "type": "str, optional", "default": ""}}}, {"name": "user_medias", "description": "Fetches media posts for a specified Instagram user.", "parameters": {"user_id": {"description": "The Instagram user ID for which to fetch media posts.", "type": "str", "default": "13460080"}, "next_max_id": {"description": "Pagination parameter for fetching the next set of media posts. Default is None.", "type": "str, optional", "default": ""}}}, {"name": "user_tweets_replies_by_screen_name", "description": "Fetches the tweets and replies of a specified user by their screen name using the Twitter API.", "parameters": {"username": {"description": "The screen name of the user whose tweets and replies are to be fetched.", "type": "str", "default": "elonmusk"}, "cursor": {"description": "The cursor for pagination, if any. Defaults to None.", "type": "str, optional", "default": ""}, "limit": {"description": "The maximum number of tweets and replies to fetch. Defaults to '40'.", "type": "str, optional", "default": "40"}}}]
Fetch the media posts for Instagram user with ID 'xyz123'. Additionally, retrieve the tweets and replies of Twitter user 'john_doe'.
user
assistant
[{"name": "user_medias", "arguments": {"user_id": "xyz123"}}, {"name": "user_tweets_replies_by_screen_name", "arguments": {"username": "john_doe"}}]