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_info", "description": "Fetches video information from YouTube using the provided video ID.", "parameters": {"is_id": {"description": "The ID of the YouTube video for which the information is to be fetched.", "type": "str", "default": "dQw4w9WgXcQ"}}}]
What is the information for the viral video with the ID 'viral123'?
user
assistant
[{"name": "video_info", "arguments": {"is_id": "viral123"}}]