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

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

machine_learning/ridge_regression/model.py

@@ -3,7 +3,8 @@ import pandas as pd
 
 
 class RidgeRegression:
-    def __init__(self,
+    def __init__(
+        self,
         alpha: float = 0.001,
         regularization_param: float = 0.1,
         num_iterations: int = 1000,
@@ -49,8 +50,7 @@ class RidgeRegression:
         m = len(y)
 
         predictions = x_scaled.dot(self.theta)
-        cost = (
-            1 / (2 * m)) * np.sum((predictions - y) ** 2) + (
+        cost = (1 / (2 * m)) * np.sum((predictions - y) ** 2) + (
             self.regularization_param / (2 * m)
         ) * np.sum(self.theta**2)
         return cost