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": "list_folder_contents", "description": "Retrieves the contents of a specified Github repository folder using the Git Pager API.", "parameters": {"repo": {"description": "The repository name in the format 'owner/repo'. Defaults to 'gina305/switch-code'.", "type": "str", "default": "gina305/switch-code"}, "path": {"description": "The filepath within the repository. Defaults to '/'.", "type": "str", "default": "/"}, "key": {"description": "The access token for Github API authentication.", "type": "str", "default": "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"}}}, {"name": "software_assets", "description": "Fetch details of SaaS/Software tools based on specified feature tags or software name.", "parameters": {"q": {"description": "Query string representing the list of feature tags or the name of the software for which details are to be fetched.", "type": "str", "default": "email-marketing, landing-pages"}}}, {"name": "label_sizes", "description": "Fetches a list of label sizes in the specified format from the RapidAPI service.", "parameters": {"format": {"description": "The paper size format. Can be either \"Letter\" for 8.5 inch by 11 inch, or \"A4\" for 210 mm by 297 mm.", "type": "str", "default": "letter"}, "shape": {"description": "The label shape. Defaults to 'square'.", "type": "str, optional", "default": "square"}, "brand": {"description": "The label manufacturer's name. Defaults to 'avery'. Possible values include \"Avery\", \"Herma\", \"Onlinelabels\", \"Uline\", \"Megastar\", and \"Sheetlabels\".", "type": "str, optional", "default": "avery"}}}]
Provide label sizes for 'Letter' paper format from 'Uline' brand, with a 'rectangle' shape.
user
assistant
[{"name": "label_sizes", "arguments": {"format": "Letter", "shape": "rectangle", "brand": "Uline"}}]