Update eval.py

eval.py

@@ -303,6 +303,8 @@ def train_loop(config, model, noise_scheduler, optimizer, train_dataloader, lr_s
         model, optimizer, train_dataloader, lr_scheduler
     )
 
+    pipeline = DDPMPipeline(unet=accelerator.unwrap_model(model), scheduler=noise_scheduler)
+    
     if accelerator.is_main_process:
         evaluate(config, 1, config.pipeline)