如何使用通过函数返回的类？

class Person:
    def __init__(self, name, age):
        self.name = name
        self.age = age
    
    def say_hello(self):
        print("Hello, my name is", self.name)
    
    def get_age(self):
        return self.age

def create_person(name, age):
    person = Person(name, age)
    return person

# 调用函数创建对象
person1 = create_person("Alice", 25)

# 调用对象的方法和访问属性
person1.say_hello()
print("Age:", person1.get_age())