Update app.py

fix get_list_of_people_on_iss tool function

app.py

@@ -8,8 +8,18 @@ from tools.final_answer import FinalAnswerTool
 from Gradio_UI import GradioUI
 
 @tool
-def get_list_of_people_on_iss() -> str:
-    """A tool that fetches the current number of people in space. When known it also fetches the names and spacecraft those people are on. The tool takes no args."""
+def get_list_of_people_on_iss() -> dict:
+    """A tool that fetches the current number of people in space. When known it also fetches the names and spacecraft those people are on. Returns.
+    Returns:
+        dict: A JSON object containing the following keys:
+            - "message" (str): Status message (e.g., "success").
+            - "number" (int): The number of astronauts currently in space.
+            - "people" (list of dict): A list of astronauts, where each entry contains:
+                - "name" (str): The astronaut's name.
+                - "craft" (str): The name of the spacecraft they are on.
+    
+    Args: None
+    """
     
     url = "http://api.open-notify.org/astros.json"
     response = requests.get(url)