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": "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]"}}}, {"name": "get_range", "description": "Helper function to format the range string.", "parameters": {"start": {"description": "The start of the range.", "type": "int"}, "end": {"description": "The end of the range.", "type": "int"}}}, {"name": "is_valid_parentheses", "description": "Checks if a string contains valid parentheses.", "parameters": {"s": {"description": "The input string.", "type": "str"}}}, {"name": "generate_random_string", "description": "Generates a random string of specified length and character types.", "parameters": {"length": {"description": "The length of the random string.", "type": "int", "default": true}, "uppercase": {"description": "Include uppercase letters. Defaults to True.", "type": "bool, optional", "default": true}, "lowercase": {"description": "Include lowercase letters. Defaults to True.", "type": "bool, optional", "default": true}, "digits": {"description": "Include digits. Defaults to True.", "type": "bool, optional"}, "special_chars": {"description": "Include special characters. Defaults to False.", "type": "bool, optional", "default": true}}}, {"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": "format_date", "description": "Converts a date string from one format to another.", "parameters": {"date": {"description": "The date string to convert.", "type": "str"}, "input_format": {"description": "The format of the input date string.", "type": "str"}, "output_format": {"description": "The desired format of the output date 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"}}}]
Check if the strings '[]{}()' and '({[()]})' have valid parentheses and generate a random password of length 20 that does not include special characters.
user
assistant
[{"name": "generate_password", "arguments": {"length": 20, "include_special": false}}]