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

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

data_structures/arrays/median_two_array.py

@@ -39,6 +39,7 @@ def find_median_sorted_arrays(self, nums1: list[int], nums2: list[int]) -> float
             middle2 = merged[total // 2]
             return (float(middle1) + float(middle2)) / 2.0
 
+
 if __name__ == "__main__":
     import doctest