Update app.py

app.py

@@ -11,7 +11,7 @@ from Gradio_UI import GradioUI
 
 # Below is an example of a tool that does nothing. Amaze us with your creativity !
 @tool
-def get_new_moon_dates(year:str)-> str: #it's import to specify the return type
+def get_new_moon_dates(year: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
     """Retrieves the dates of new moons for a given year using the USNO API.
     Args: