有没有一种简单的方法来计算两个date_times之间的分钟数，不包括特定的间隔？

from datetime import datetime

def calculate_minutes(start_time, end_time):
    timedelta = end_time - start_time
    seconds = timedelta.total_seconds()
    minutes = seconds / 60
    return minutes

start_time = datetime(2022, 1, 1, 10, 0, 0)
end_time = datetime(2022, 1, 1, 10, 30, 0)

minutes = calculate_minutes(start_time, end_time)
print(minutes)