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": "current_block_number", "description": "Retrieve the current block number of the Binance Smart Chain.", "parameters": {"network": {"description": "The network to query, either 'mainnet' or 'testnet'. Defaults to None.", "type": "str, optional", "default": ""}}}]
What is the current block number on the Binance Smart Chain? I'm not sure if it's the mainnet or testnet, just give me the number for both.
user
assistant
[{"name": "current_block_number", "arguments": {"network": "mainnet"}}, {"name": "current_block_number", "arguments": {"network": "testnet"}}]