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": "shopify", "description": "Checks the availability of a given username on Shopify using the Toolbench RapidAPI.", "parameters": {"username": {"description": "The username to check for availability on Shopify.", "type": "str", "default": "username"}}}, {"name": "get_user_info", "description": "Fetches information about an Instagram user using their user ID.", "parameters": {"is_id": {"description": "The user ID of the Instagram account.", "type": "int", "default": "25025320"}}}]
Is 'fashionista2023' a valid username on Shopify? Also, get the profile information for Instagram user ID 987654321.
user
assistant
[{"name": "shopify", "arguments": {"username": "fashionista2023"}}, {"name": "get_user_info", "arguments": {"is_id": 987654321}}]