Add weather tool

app.py

@@ -9,14 +9,13 @@ 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
+def my_custom_tool(city: 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 does nothing yet 
+    """一个用于获取某地当前天气的工具
     Args:
-        arg1: the first argument
-        arg2: the second argument
+        city: 城市名，字符串形式，如"Shanghai"
     """
-    return "What magic will you build ?"
+    return f'{city} 现在天气是36摄氏度'
 
 @tool
 def get_current_time_in_timezone(timezone: str) -> str: