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": "calculate_factorial", "description": "Calculates the factorial of a non-negative integer.", "parameters": {"n": {"description": "The non-negative integer.", "type": "int"}}}, {"name": "merge_dictionaries", "description": "Merges two dictionaries into a single dictionary.", "parameters": {"dict1": {"description": "The first dictionary.", "type": "Dict"}, "dict2": {"description": "The second dictionary.", "type": "Dict"}}}]
Calculate the factorial of 0 and merge dictionaries {'x': 10, 'y': 20} and {'z': 30, 'w': 40}.
user
assistant
[{"name": "calculate_factorial", "arguments": {"n": 0}}, {"name": "merge_dictionaries", "arguments": {"dict1": {"x": 10, "y": 20}, "dict2": {"z": 30, "w": 40}}}]