[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/k_nearest_neighbours.py

@@ -131,9 +131,11 @@ def classify(self, pred_point: np.ndarray[float], k: int = 5) -> str:
         """
         # Choose the distance function once
         if self.distance_metric == "euclidean":
+
             def dist_fn(a: np.ndarray[float]) -> float:
                 return self._euclidean_distance(a, pred_point)
         elif self.distance_metric == "manhattan":
+
             def dist_fn(a: np.ndarray[float]) -> float:
                 return self._manhattan_distance(a, pred_point)
         else:  # minkowski