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": "retrieve_user", "description": "Retrieves details of a user based on the provided user ID from the rapidapi service.", "parameters": {"user_id": {"description": "The ID of the user whose details are to be retrieved.", "type": "str", "default": "yKscUgpDShWKaf6zCLjyZw"}}}, {"name": "search", "description": "This function searches for a book by its name using the RapidAPI service.", "parameters": {"s": {"description": "The name of the book to search for.", "type": "str", "default": ""}}}, {"name": "geteasyquestion", "description": "Fetches the number of easy questions solved by a specified user from the LeetCode API.", "parameters": {"username": {"description": "The LeetCode username of the user to fetch the information for.", "type": "str", "default": "mujtabah258"}}}]
Retrieve details of user with ID '12345' and search for the book 'Harry Potter and the Philosopher\'s Stone'. Also, fetch the number of easy questions solved by user 'john_doe' on LeetCode.
user
assistant
[{"name": "retrieve_user", "arguments": {"user_id": "12345"}}, {"name": "search", "arguments": {"s": "Harry Potter and the Philosopher's Stone"}}, {"name": "geteasyquestion", "arguments": {"username": "john_doe"}}]