Update app.py

app.py

@@ -77,9 +77,9 @@ description = """
 Upload an image, and this app will generate a short story based on the image.
 """
 
-
+chunks=[]
 async def sepia(input_img):
-    chunks=[]
+    globals chunks
     async for e in chain.astream(input={"segmentation_results":input_img}):
         chunks.append(e)
         yield "".join(chunks)