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": "split_list", "description": "Splits a list into chunks of a specified size.", "parameters": {"lst": {"description": "The input list.", "type": "List"}, "chunk_size": {"description": "The size of each chunk.", "type": "int"}}}, {"name": "is_rotation", "description": "Checks if one string is a rotation of another string.", "parameters": {"str1": {"description": "The first string.", "type": "str"}, "str2": {"description": "The second string.", "type": "str"}}}, {"name": "calculate_factorial", "description": "Calculates the factorial of a non-negative integer.", "parameters": {"n": {"description": "The non-negative integer.", "type": "int"}}}, {"name": "count_vowels", "description": "Counts the number of vowels in a given text.", "parameters": {"text": {"description": "The input text.", "type": "str"}}}, {"name": "is_palindrome", "description": "Checks if a string is a palindrome.", "parameters": {"text": {"description": "The input string.", "type": "str"}}}, {"name": "merge_dictionaries", "description": "Merges two dictionaries into a single dictionary.", "parameters": {"dict1": {"description": "The first dictionary.", "type": "Dict"}, "dict2": {"description": "The second dictionary.", "type": "Dict"}}}, {"name": "calculate_age", "description": "Calculates the age based on the birthdate.", "parameters": {"birthdate": {"description": "The birthdate in the format 'YYYY-MM-DD'.", "type": "str"}}}, {"name": "find_max_subarray_sum", "description": "Finds the maximum sum of a contiguous subarray within a list of integers.", "parameters": {"nums": {"description": "The input list of integers.", "type": "List[int]"}}}]
Find the maximum subarray sum in the list [-2, 1, -3, 4, -1, 2, 1, -5, 4].
user
assistant
[{"name": "find_max_subarray_sum", "arguments": {"nums": [-2, 1, -3, 4, -1, 2, 1, -5, 4]}}]