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": "detalhes_empresa", "description": "Retrieves detailed information about a company using its CNPJ.", "parameters": {"cnpj": {"description": "The CNPJ of the company.", "type": "str", "default": "45973106000100"}}}]
Could you find out the creation date and legal nature of the business with CNPJ 23.456.789/0001-67?
user
assistant
[{"name": "detalhes_empresa", "arguments": {"cnpj": "23.456.789/0001-67"}}]