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": "getmediumquestion", "description": "Fetches the number of medium-level questions solved by the given user from the LeetCode API.", "parameters": {"username": {"description": "The username of the LeetCode user whose medium-level questions solved count is to be fetched.", "type": "str", "default": "mujtabah258"}}}]
I'm curious about the number of medium-level challenges 'tech_guru' has solved on LeetCode.
user
assistant
[{"name": "getmediumquestion", "arguments": {"username": "tech_guru"}}]