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_post_comments", "description": "Fetch comments for a given Twitter post using its post ID.", "parameters": {"pid": {"description": "The post ID for which to retrieve comments.", "type": "str", "default": "1552735248026411010"}, "count": {"description": "The number of comments to retrieve.", "type": "str", "default": "40"}, "cursor": {"description": "Cursor for pagination to retrieve the next set of comments. Defaults to None.", "type": "str, optional", "default": ""}}}]
Retrieve the first 7 comments for a Twitter post with ID '4444444444'.
user
assistant
[{"name": "get_post_comments", "arguments": {"pid": "4444444444", "count": "7"}}]