如何生成numpy数组中包含的随机字符串对

import numpy as np
import random
import string

def generate_random_string_pair(length):
    letters = string.ascii_letters
    random_string1 = ''.join(random.choice(letters) for i in range(length))
    random_string2 = ''.join(random.choice(letters) for i in range(length))
    return random_string1, random_string2

array_size = (5, 2)  # 数组大小为5行2列
string_length = 10  # 随机字符串长度为10

random_array = np.empty(array_size, dtype='object')
for i in np.ndindex(array_size):
    random_array[i] = generate_random_string_pair(string_length)

print(random_array)