Tool Call Parsing (Dynamo)

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from openai import OpenAI
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import json
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client = OpenAI(base_url="http://localhost:8081/v1", api_key="dummy")
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def get_weather(location: str, unit: str):
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    return f"Getting the weather for {location} in {unit}..."
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tool_functions = {"get_weather": get_weather}
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tools = [{
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    "type": "function",
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    "function": {
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        "name": "get_weather",
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        "description": "Get the current weather in a given location",
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        "parameters": {
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            "type": "object",
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            "properties": {
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                "location": {"type": "string", "description": "City and state, e.g., 'San Francisco, CA'"},
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                "unit": {"type": "string", "enum": ["celsius", "fahrenheit"]}
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            },
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            "required": ["location", "unit"]
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        }
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    }
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}]
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response = client.chat.completions.create(
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    model="openai/gpt-oss-20b",
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    messages=[{"role": "user", "content": "What's the weather like in San Francisco in Celsius?"}],
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    tools=tools,
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    tool_choice="auto",
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    max_tokens=10000
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)
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tool_call = response.choices[0].message.tool_calls[0].function
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print(f"Function called: {tool_call.name}")
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print(f"Arguments: {tool_call.arguments}")
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print(f"Result: {tool_functions[tool_call.name](**json.loads(tool_call.arguments))}")