Update app.py

app.py

@@ -7,6 +7,7 @@ from diffusers import  DiffusionPipeline, FlowMatchEulerDiscreteScheduler, Autoe
 from para_attn.first_block_cache.diffusers_adapters import apply_cache_on_pipe
 from transformers import CLIPTextModel, CLIPTokenizer,T5EncoderModel, T5TokenizerFast
 from live_preview_helpers import calculate_shift, retrieve_timesteps, flux_pipe_call_that_returns_an_iterable_of_images
+import multiprocessing as mp
 
 dtype = torch.bfloat16
 device = "cuda" if torch.cuda.is_available() else "cpu"