Add custom tools.

app.py

@@ -1,4 +1,5 @@
 from smolagents import CodeAgent,DuckDuckGoSearchTool, HfApiModel,load_tool,tool
+import os
 import datetime
 import requests
 import pytz
@@ -33,6 +34,45 @@ def get_current_time_in_timezone(timezone: str) -> str:
     except Exception as e:
         return f"Error fetching time for timezone '{timezone}': {str(e)}"
 
+@tool
+def get_aqi(city:str, state:str, country:str)-> str:
+    """A tool that fetches the specified city's air quality data. 
+    Args:
+        city: city's English name
+        state: state's English name
+        country: country's English name
+    """
+    try:
+        IQAIR_API_KEY = os.environ["IQAIR_API_KEY"]
+        url = f"http://api.airvisual.com/v2/city?city={city}&state={state}&country={country}&key={IQAIR_API_KEY}"
+        payload={}
+        headers = {}
+
+        response = requests.request("GET", url, headers=headers, data=payload)
+
+        data_json = response.json
+        if data_json.status == "success":
+            return f"The current air quality in {city} is {data_json.current.pollution.aqius}."
+        else:
+            return "No air quality data was fetched.";
+
+    except requests.exceptions.Timeout:
+        return "The request timed out. Please try again later or check the URL."
+    except RequestException as e:
+        return f"Error fetching the IQAir API: {str(e)}"
+    except Exception as e:
+        return f"An unexpected error occurred: {str(e)}"
+
+@tool
+def air_purifier_switch(cmd:str) -> str:
+    """A tool to turn the air purifier on/off.
+    Args:
+        cmd: Switch command (on/off). on - turn on; off - turn off.
+    """
+    if cmd != "on" and cmd != "off":
+        return "Illegal air purifier switch command.";
+    
+    return f"The air purifier has been successfully turned {cmd}."
 
 final_answer = FinalAnswerTool()
 
@@ -40,10 +80,10 @@ final_answer = FinalAnswerTool()
 # 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
-custom_role_conversions=None,
+    max_tokens=2096,
+    temperature=0.5,
+    model_id='Qwen/Qwen2.5-Coder-32B-Instruct',# it is possible that this model may be overloaded
+    custom_role_conversions=None,
 )
 
 
@@ -55,7 +95,7 @@ with open("prompts.yaml", 'r') as stream:
     
 agent = CodeAgent(
     model=model,
-    tools=[final_answer], ## add your tools here (don't remove final answer)
+    tools=[get_aqi, air_purifier_switch, final_answer], ## add your tools here (don't remove final answer)
     max_steps=6,
     verbosity_level=1,
     grammar=None,