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": "time", "description": "Retrieves the current time token from the PubNub Network.", "parameters": {"callback": {"description": "JSONP callback function name.", "type": "str", "default": "0"}}}]
Retrieve the current time token using a simple callback function named 'myCallback'.
user
assistant
[{"name": "time", "arguments": {"callback": "myCallback"}}]