[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

lightning_examples/mnist-hello-world/hello-world.py

@@ -326,7 +326,6 @@ def training_step(self, batch: Tuple[torch.Tensor, torch.Tensor], batch_nb: int)
  Returns:
  (torch.Tensor): The training loss.
  """
-
  x, y = batch
  logits = self(x)
  loss = F.nll_loss(logits, y)
@@ -408,7 +407,6 @@ def train_dataloader(self) -> DataLoader:
  Returns:
  DataLoader: The training DataLoader.
  """
-
  return DataLoader(self.mnist_train, batch_size=config.batch_size)
 
  def val_dataloader(self) -> DataLoader:
@@ -417,7 +415,6 @@ def val_dataloader(self) -> DataLoader:
  Returns:
  DataLoader: The validation DataLoader.
  """
-
  return DataLoader(self.mnist_val, batch_size=config.batch_size)
 
  def test_dataloader(self) -> DataLoader: