Front-Back connect test

app.py

@@ -1,12 +1,10 @@
 import gradio as gr
 import io 
-from PIL import Image 
+from PIL import Image, PngImagePlugin
 import base64
 import requests
 import json 
-from PIL import Image
 import ui_functions as uifn
-import numpy
 
 txt2img_defaults = {
     'prompt': '',
@@ -127,7 +125,7 @@ def call_JS(sd_method, **kwargs):
     return f"async (...x) => {{ return await SD.{sd_method}({{ x, ...{param_str} }}) ?? []; }}"
 
 def encode_pil_to_base64(pil_image):
-    with BytesIO() as output_bytes:
+    with io.BytesIO() as output_bytes:
 
         # Copy any text-only metadata
         use_metadata = False