Update app.py

app.py

@@ -74,7 +74,7 @@ def chat_bot(history):
       time.sleep(0.02)
       yield history
     elif isinstance(block, dict) and block.get("image_url"):
-      url = (block)["image_url"].get("url").split(",")[-1]
+      url = block["image_url"].get("url").split(",")[-1]
       image = base64_to_image(url, f"{uuid.uuid4()}.png")
       history.append({"role": "assistant", "content": {"path": image}})
       yield history