Update assistants.py

assistants.py

@@ -49,10 +49,18 @@ def get_assistant():
     global assistant
     return assistant
 
+def set_assistant(a):
+    global assistant
+    assistant = a
+    
 def get_thread():
     global thread
     return thread
 
+def set_thread(t):
+    global thread
+    thread = t
+
 def create_assistant():
     assistant = openai_client.beta.assistants.create(
         name="Python Coding Assistant",