app.py

from smolagents import CodeAgent,DuckDuckGoSearchTool, HfApiModel, load_tool, tool
from smolagents import LiteLLMModel
import datetime
import requests
import pytz
import yaml
from tools.final_answer import FinalAnswerTool
import os 

#  Retrieve your "secret" google api key named GEMINI_API_KEY for LiteLLMModel
os.environ["GEMINI_API_KEY"] = os.getenv('GEMINI_API_KEY')

from Gradio_UI import GradioUI

# Below is an example of a tool that does nothing. Amaze us with your creativity !
@tool
def my_custom_tool(query: str)-> str: #it's import to specify the return type
    #Keep this format for the description / args / args description but feel free to modify the tool
    """A tool that fetches search results from DuckDuckGo.
    Args:
        query: The search query string.
    """
    search_tool = DuckDuckGoSearchTool()
    results = search_tool(query)
    return f"Search results for '{query}':\n" + "\n".join(results)
    

@tool
def get_current_time_in_timezone(timezone: str) -> str:
    """A tool that fetches the current local time in a specified timezone.
    Args:
        timezone: A string representing a valid timezone (e.g., 'America/New_York').
    """
    try:
        # Create timezone object
        tz = pytz.timezone(timezone)
        # Get current time in that timezone
        local_time = datetime.datetime.now(tz).strftime("%Y-%m-%d %H:%M:%S")
        return f"The current local time in {timezone} is: {local_time}"
    except Exception as e:
        return f"Error fetching time for timezone '{timezone}': {str(e)}"


final_answer = FinalAnswerTool()

model = LiteLLMModel(model_id="gemini/gemini-2.0-flash")

# model = HfApiModel(
# max_tokens=2096,
# temperature=0.5,
# # model_id='https://wxknx1kg971u7k1n.us-east-1.aws.endpoints.huggingface.cloud',# it is possible that this model may be overloaded
# model_id = 'mistralai/Mistral-7B-Instruct',
# custom_role_conversions=None,
# )


# Import tool from Hub
image_generation_tool = load_tool("agents-course/text-to-image", trust_remote_code=True)

with open("prompts.yaml", 'r') as stream:
    prompt_templates = yaml.safe_load(stream)
    
agent = CodeAgent(
    model=model,
    tools=[final_answer, my_custom_tool, get_current_time_in_timezone, image_generation_tool], ## add your tools here (don't remove final answer)
    max_steps=6,
    verbosity_level=1,
    grammar=None,
    planning_interval=None,
    name="SmartAssistant",
    description="A multi-functional AI agent capable of fetching search results, checking time zones, and generating images.",
    prompt_templates=prompt_templates
)


GradioUI(agent).launch()