from smolagents import Tool
from typing import Any, Optional

class SimpleTool(Tool):
    name = "catering_service_tool"
    description = "Find a top-rated South Indian catering service."
    inputs = {'query': {'type': 'string', 'description': 'A keyword or city name.'}}
    output_type = "string"

    def forward(self, query: str) -> str:
        """
        Find a top-rated South Indian catering service.

        Args:
            query (str): A keyword or city name.
        """
        services = {
            "Annapurna Caterers, Chennai": 4.9,
            "Balaji Foods, Hyderabad": 4.8,
            "Udupi Home Catering, Bangalore": 4.7,
        }
        best_service = max(services, key=services.get)
        return f"Recommended catering service: {best_service}"