Refactor app.py for code style consistency and enhance tool integration

- Improved formatting and spacing in function definitions and imports for better readability.
- Added DuckDuckGoSearchTool to the agent's tools list.
- Updated comments for clarity and consistency.

app.py

@@ -1,4 +1,4 @@
-from smolagents import CodeAgent,DuckDuckGoSearchTool, HfApiModel,load_tool,tool
+from smolagents import CodeAgent, DuckDuckGoSearchTool, HfApiModel, load_tool, tool
 import datetime
 import requests
 import pytz
@@ -7,17 +7,21 @@ 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 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 does nothing yet 
+def my_custom_tool(
+    arg1: str, arg2: int
+) -> 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 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.
@@ -33,15 +37,16 @@ def get_current_time_in_timezone(timezone: str) -> str:
     except Exception as e:
         return f"Error fetching time for timezone '{timezone}': {str(e)}"
 
+
 final_answer = FinalAnswerTool()
 
 # If the agent does not answer, the model is overloaded, please use another model or the following Hugging Face Endpoint that also contains qwen2.5 coder:
-# model_id='https://pflgm2locj2t89co.us-east-1.aws.endpoints.huggingface.cloud' 
+# model_id='https://pflgm2locj2t89co.us-east-1.aws.endpoints.huggingface.cloud'
 
 model = HfApiModel(
     max_tokens=2096,
     temperature=0.5,
-    model_id='Qwen/Qwen2.5-Coder-32B-Instruct',# it is possible that this model may be overloaded
+    model_id="Qwen/Qwen2.5-Coder-32B-Instruct",  # it is possible that this model may be overloaded
     custom_role_conversions=None,
 )
 
@@ -49,20 +54,24 @@ model = HfApiModel(
 # 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:
+with open("prompts.yaml", "r") as stream:
     prompt_templates = yaml.safe_load(stream)
-    
+
 agent = CodeAgent(
     model=model,
-    tools=[final_answer, get_current_time_in_timezone], ## add your tools here (don't remove final answer)
+    tools=[
+        final_answer,
+        get_current_time_in_timezone,
+        DuckDuckGoSearchTool(),
+    ],  ## add your tools here (don't remove final answer)
     max_steps=6,
     verbosity_level=1,
     grammar=None,
     planning_interval=None,
     name=None,
     description=None,
-    prompt_templates=prompt_templates
+    prompt_templates=prompt_templates,
 )
 
 
-GradioUI(agent).launch()
+GradioUI(agent).launch()