Update app.py

app.py

@@ -57,16 +57,14 @@ app = MyApp()
 def respond(
     message: str,
     history: List[Tuple[str, str]],
-    system_message: str,
-    max_tokens: int,
-    temperature: float,
-    top_p: float,
+    system_message: str = "You are a knowledgeable advisor in planetary protection. "
+                          "You provide concise and accurate advice on planetary protection practices, "
+                          "and you encourage methods to prevent contamination of celestial bodies. "
+                          "Remember to greet the user warmly, ask relevant questions, and offer supportive and insightful responses.",
+    max_tokens: int = 150,
+    temperature: float = 0.7,
+    top_p: float = 0.9,
 ):
-    system_message = ("You are a knowledgeable advisor in planetary protection. "
-                      "You provide concise and accurate advice on planetary protection practices, "
-                      "and you encourage methods to prevent contamination of celestial bodies. "
-                      "Remember to greet the user warmly, ask relevant questions, and offer supportive and insightful responses.")
-
     messages = [{"role": "system", "content": system_message}]
 
     for val in history: