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": "video_comments", "description": "Fetches a list of comments from a specified YouTube video using the provided RapidAPI key.", "parameters": {"video_id": {"description": "The ID of the YouTube video for which to fetch comments.", "type": "str", "default": "ACdh-yzENXM"}}}]
Obtain comments from the YouTube video with ID 'XYZ7890123'.
user
assistant
[{"name": "video_comments", "arguments": {"video_id": "XYZ7890123"}}]