fixed syntax error

main.py

@@ -40,57 +40,57 @@ async def chat_completion(request: ChatRequest):
         "model": request.model
     }
 
-if request.stream:
-    def event_stream():
-        chat_id = f"chatcmpl-{unix_id()}"
-        created = int(time.time())
-        sent_done = False
+    if request.stream:
+        def event_stream():
+            chat_id = f"chatcmpl-{unix_id()}"
+            created = int(time.time())
+            sent_done = False
 
-        with requests.post(
-            "https://www.chatwithmono.xyz/api/chat",
-            headers=headers,
-            json=payload,
-            stream=True,
-            timeout=120
-        ) as response:
-            for line in response.iter_lines(decode_unicode=True):
-                if line.startswith("0:"):
-                    try:
-                        content_piece = json.loads(line[2:])
-                        chunk_data = {
+            with requests.post(
+                "https://www.chatwithmono.xyz/api/chat",
+                headers=headers,
+                json=payload,
+                stream=True,
+                timeout=120
+            ) as response:
+                for line in response.iter_lines(decode_unicode=True):
+                    if line.startswith("0:"):
+                        try:
+                            content_piece = json.loads(line[2:])
+                            chunk_data = {
+                                "id": chat_id,
+                                "object": "chat.completion.chunk",
+                                "created": created,
+                                "model": request.model,
+                                "choices": [
+                                    {
+                                        "delta": {"content": content_piece},
+                                        "index": 0,
+                                        "finish_reason": None
+                                    }
+                                ]
+                            }
+                            yield f"data: {json.dumps(chunk_data)}\n\n"
+                        except:
+                            continue
+                    elif line.startswith(("e:", "d:")) and not sent_done:
+                        sent_done = True
+                        done_chunk = {
                             "id": chat_id,
                             "object": "chat.completion.chunk",
                             "created": created,
                             "model": request.model,
                             "choices": [
                                 {
-                                    "delta": {"content": content_piece},
+                                    "delta": {},
                                     "index": 0,
-                                    "finish_reason": None
+                                    "finish_reason": "stop"
                                 }
                             ]
                         }
-                        yield f"data: {json.dumps(chunk_data)}\n\n"
-                    except:
-                        continue
-                elif line.startswith(("e:", "d:")) and not sent_done:
-                    sent_done = True
-                    done_chunk = {
-                        "id": chat_id,
-                        "object": "chat.completion.chunk",
-                        "created": created,
-                        "model": request.model,
-                        "choices": [
-                            {
-                                "delta": {},
-                                "index": 0,
-                                "finish_reason": "stop"
-                            }
-                        ]
-                    }
-                    yield f"data: {json.dumps(done_chunk)}\n\ndata: [DONE]\n\n"
+                        yield f"data: {json.dumps(done_chunk)}\n\ndata: [DONE]\n\n"
 
-    return StreamingResponse(event_stream(), media_type="text/event-stream")
+        return StreamingResponse(event_stream(), media_type="text/event-stream")
 
     else:
         assistant_response = ""
@@ -136,3 +136,4 @@ if request.stream:
                 "total_tokens": usage_info.get("promptTokens", 0) + usage_info.get("completionTokens", 0),
             }
         })
+                all