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": "get_field_and_field_invite_id", "description": "Fetches the field and field invite IDs for a given document from the SignNow API.", "parameters": {"document_id": {"description": "The ID of the document for which to retrieve field and field invite IDs.", "type": "str", "default": ""}}}, {"name": "getuserbyname", "description": "Fetches user details by username from the specified API endpoint using the provided RapidAPI key.", "parameters": {"username": {"description": "The username of the user to fetch details for.", "type": "str", "default": ""}}}]
What are the field and field invite IDs for the document with ID '123456', and what are the details of the user with username 'john_doe'?
user
assistant
[{"name": "get_field_and_field_invite_id", "arguments": {"document_id": "123456"}}, {"name": "getuserbyname", "arguments": {"username": "john_doe"}}]