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

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

Author: pre-commit-ci[bot]

machine_learning/loss_functions.py

@@ -663,7 +663,6 @@ def kullback_leibler_divergence(y_true: np.ndarray, y_pred: np.ndarray) -> float
     return np.sum(kl_loss)
 
 
-
 def root_mean_squared_error(y_true: np.ndarray, y_pred: np.ndarray) -> float:
     """
     Calculate the Root Mean Squared Error (RMSE) between ground truth and predicted values.
@@ -705,7 +704,6 @@ def root_mean_squared_error(y_true: np.ndarray, y_pred: np.ndarray) -> float:
     return np.sqrt(mse)
 
 
-
 def log_cosh_loss(y_true: np.ndarray, y_pred: np.ndarray) -> float:
     """
     Calculate the Log-Cosh Loss between ground truth and predicted values.
@@ -751,6 +749,7 @@ def log_cosh_loss(y_true: np.ndarray, y_pred: np.ndarray) -> float:
     loss = np.logaddexp(errors, -errors) - np.log(2)
     return np.mean(loss)
 
+
 if __name__ == "__main__":
     import doctest