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": "is_palindrome", "description": "Checks if a string is a palindrome.", "parameters": {"text": {"description": "The input string.", "type": "str"}}}, {"name": "generate_password", "description": "Generates a random password of specified length and character types.", "parameters": {"length": {"description": "The length of the password. Defaults to 12.", "type": "int, optional", "default": 12}, "include_special": {"description": "Whether to include special characters in the password. Defaults to True.", "type": "bool, optional", "default": true}}}, {"name": "is_valid_parentheses", "description": "Checks if a string contains valid parentheses.", "parameters": {"s": {"description": "The input string.", "type": "str"}}}, {"name": "calculate_grade", "description": "Calculates the weighted average grade based on scores and their corresponding weights.", "parameters": {"scores": {"description": "A list of scores.", "type": "List[float]"}, "weights": {"description": "A list of weights corresponding to each score.", "type": "List[float]"}}}]
Determine if the string '([])[]({})' has valid parentheses.
user
assistant
[{"name": "is_valid_parentheses", "arguments": {"s": "([])[]({})"}}]