app.py

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

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(arg1:str, arg2:int)-> str: # it's important to specify the return type
    # Keep this format for the tool description / args description but feel free to modify the tool
    """A tool that does nothing yet 
    Args:
        arg1: the first argument
        arg2: the second argument
    """
    return "What magic will you build ?"

@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 = HfApiModel(
    max_tokens=2096,
    temperature=0.5,
    model_id='Qwen/Qwen2.5-Coder-32B-Instruct',
    custom_role_conversions=None,
)


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

# Load system prompt from prompt.yaml file
with open("prompts.yaml", 'r') as stream:
    prompt_templates = yaml.safe_load(stream)

if "final_answer" not in prompt_templates:
    prompt_templates["final_answer"] = {
        "template": "This is the final answer: {answer}",
        "pre_messages": "You are about to receive the final answer.",
        "post_messages": "The task is complete. If you have any further questions, feel free to ask."
    }
else:
    # Ensure 'pre_messages' exists within 'final_answer' template
    if "pre_messages" not in prompt_templates["final_answer"]:
        prompt_templates["final_answer"]["pre_messages"] = "You are about to receive the final answer."
    
    # Ensure 'post_messages' exists within 'final_answer' template
    if "post_messages" not in prompt_templates["final_answer"]:
        prompt_templates["final_answer"]["post_messages"] = "The task is complete. If you have any further questions, feel free to ask."


required_templates = ["planning", "managed_agent"]

for template in required_templates:
    if template not in prompt_templates:
        # Define a default template for the missing one(s)
        if template == "planning":
            prompt_templates["planning"] = """
            You are an expert assistant capable of breaking down complex tasks into smaller steps. 
            For each task, plan your approach step-by-step. Each step should include a 'Thought:' 
            explaining the reasoning, 'Code:' to write the Python code, and 'Observation:' to explain the result.
            """
        elif template == "managed_agent":
            prompt_templates["managed_agent"] = """
            You are a managed agent who will execute a task with steps defined for you. After each step,
            you should provide 'Thought:', 'Code:', and 'Observation:' sequences to guide the process.
            """

            
    
agent = CodeAgent(
    model=model,
    tools=[
        final_answer,
        my_custom_tool,
        get_current_time_in_timezone,
        image_generation_tool
    ],
    max_steps=6,
    verbosity_level=1,
    grammar=None,
    planning_interval=None,
    name=None,
    description=None,
    prompt_templates=prompt_templates # Pass system prompt to CodeAgent
)


GradioUI(agent).launch()