Update app_kontext.py

app_kontext.py

@@ -6,7 +6,6 @@ import random
 import os
 import subprocess
 import logging
-
 #####################################################
 # Forced Diffusers upgrade when cache was being stubborn; probably not needed now 
 force = subprocess.run("pip install -U diffusers", shell=True)
@@ -17,6 +16,7 @@ force = subprocess.run("pip install git+https://github.com/huggingface/transform
 import transformers
 import diffusers
 from diffusers import DiffusionPipeline
+import bitsandbytes
 from diffusers.quantizers import PipelineQuantizationConfig
 from diffusers.utils import load_image
 from diffusers import FluxKontextPipeline