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_user_profile", "description": "Fetches the user profile from the Pinterest API using the provided username.", "parameters": {"username": {"description": "The Pinterest username for which to retrieve the profile information.", "type": "str", "default": "0869178429hau"}}}]
I need the profile of 'art_lover_123'.
user
assistant
[{"name": "get_user_profile", "arguments": {"username": "art_lover_123"}}]