Update model.py

src/models/model.py

@@ -132,7 +132,7 @@ class PLDataModule(LightningDataModule):
         )
 
     def train_dataloader(self):
-        """ training dataloader """
+        """training dataloader"""
         return DataLoader(
             self.train_dataset, batch_size=self.batch_size, shuffle=True, num_workers=self.num_workers
         )