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": "count_vowels", "description": "Counts the number of vowels in a given text.", "parameters": {"text": {"description": "The input text.", "type": "str"}}}]
What is the count of vowels in the following text: 'Hello, World!'?
user
assistant
[{"name": "count_vowels", "arguments": {"text": "Hello, World!"}}]