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": "revenue_estimate", "description": "Fetches the revenue estimate for a given stock ticker using the Toolbench RapidAPI.", "parameters": {"ticker": {"description": "The stock ticker symbol for which to fetch the revenue estimate.", "type": "str", "default": "AAPL"}}}]
Get the revenue estimate for Facebook, Inc. (META).
user
assistant
[{"name": "revenue_estimate", "arguments": {"ticker": "META"}}]