another typo

train.py

@@ -58,7 +58,7 @@ def validate(diffuser: StableDiffuser, finetuner: FineTunedModel,
             pbar.step()
 
         num_samples = sample_embeddings.shape[0] // 2
-        for i in tqdm(range(0, num_samples));
+        for i in tqdm(range(0, num_samples)):
             print(f'making sample {i}...')
             if training_should_cancel:
                 print("cancel requested, bailing")