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": "memre_api_v1_users_user_id_learning_stats", "description": "Fetches the most effective times of day for a user to study using the memre API.", "parameters": {"user_id": {"description": "The ID of the user for whom to retrieve learning statistics.", "type": "str", "default": ""}}}]
Can you find out the optimal study times for user 12345, who is a college student, and also for user 67890, who is a working professional? I'm curious about their learning patterns.
user
assistant
[{"name": "memre_api_v1_users_user_id_learning_stats", "arguments": {"user_id": "12345"}}, {"name": "memre_api_v1_users_user_id_learning_stats", "arguments": {"user_id": "67890"}}]