Rotate Image Python Solution with Tests

lcpy gen -n 48   # by problem number
lcpy gen -s rotate_image   # by problem name

Input: matrix = [[1,2,3],[4,5,6],[7,8,9]]
Output: [[7,4,1],[8,5,2],[9,6,3]]

Input: matrix = [[5,1,9,11],[2,4,8,10],[13,3,6,7],[15,14,12,16]]
Output: [[15,13,2,5],[14,3,4,1],[12,6,8,9],[16,7,10,11]]

class Solution:
    # Time: O(n²)
    # Space: O(1)
    def rotate(self, matrix: list[list[int]]) -> None:
        n = len(matrix)

        # Transpose matrix
        for i in range(n):
            for j in range(i, n):
                matrix[i][j], matrix[j][i] = matrix[j][i], matrix[i][j]

        # Reverse each row
        for i in range(n):
            matrix[i].reverse()