Support declarative configurations for FunctionTools

[victordibia]

Enable declarative representation of tools

from typing import Literal
from autogen_core import CancellationToken
from autogen_core.tools import FunctionTool, ImportFromModule


async def calculate(
    operation:  Literal["add", "subtract", "multiply", "divide"],
    x: float,
    y: float,
) -> float:
    """Perform basic arithmetic operations on two numbers."""
    if operation == "add":
        return x + y
    elif operation == "subtract":
        return x - y
    elif operation == "multiply":
        return x * y
    elif operation == "divide":
        if y == 0:
            raise ValueError("Cannot divide by zero")
        return x / y
    else:
        raise ValueError(f"Unknown operation: {operation}")


# Create the calculator tool
calculator_tool = FunctionTool(
    func=calculate,
    description="A calculator that can add, subtract, multiply, or divide two numbers.",
    global_imports=[
        ImportFromModule("typing", ("Literal",)),
        ImportFromModule("autogen_core", ("CancellationToken",)),
        ImportFromModule("autogen_core.tools", ("FunctionTool",))
    ]
)

tool_config = calculator_tool.dump_component()
print(tool_config.model_dump())
 

{'provider': 'autogen_core.tools.FunctionTool', 'component_type': 'tool', 'version': 1, 'component_version': 1, 'description': None, 'config': {'source_code': 'async def calculate(\n    operation:  Literal["add", "subtract", "multiply", "divide"],\n    x: float,\n    y: float,\n) -> float:\n    """Perform basic arithmetic operations on two numbers."""\n    if operation == "add":\n        return x + y\n    elif operation == "subtract":\n        return x - y\n    elif operation == "multiply":\n        return x * y\n    elif operation == "divide":\n        if y == 0:\n            raise ValueError("Cannot divide by zero")\n        return x [/](https://file+.vscode-resource.vscode-cdn.net/) y\n    else:\n        raise ValueError(f"Unknown operation: {operation}")\n', 'name': 'calculate', 'description': 'A calculator that can add, subtract, multiply, or divide two numbers.', 'global_imports': [{'module': 'typing', 'imports': ('Literal',)}, {'module': 'autogen_core', 'imports': ('CancellationToken',)}, {'module': 'autogen_core.tools', 'imports': ('FunctionTool',)}], 'has_cancellation_support': False}}

# load
loaded_calculator = FunctionTool.load_component(tool_config)