Merge branch 'inference-no-ents' into 'main'

Fix HTR inference

Closes #276

See merge request !402

dan/ocr/predict/inference.py

@@ -365,8 +365,7 @@ def process_batch(
     line_separators = parse_delimiters(line_separators)
 
     # NER Entities separators
-    ner_separators = parse_tokens_pattern(tokens.values())
-
+    ner_separators = parse_tokens_pattern(tokens.values()) if tokens else None
     # Predict
     logger.info("Predicting...")
     prediction = dan_model.predict(