Update pipe.py

pipe.py

@@ -13,9 +13,7 @@ class SmilesDiffusionPipe(Pipeline):
         self.voc = voc
 
     def restore_halogen(self, smiles):
-        # Replace L → Cl when NOT inside brackets
         smiles = re.sub(r'(?<!\[)L(?!\])', 'Cl', smiles)
-        # Replace R → Br when NOT inside brackets
         smiles = re.sub(r'(?<!\[)R(?!\])', 'Br', smiles)
         return smiles