有没有办法将派生类作为if-else语句中的条件进行传递？

class BaseClass:
    def method(self):
        print("This is the base class method.")

class DerivedClass1(BaseClass):
    def method(self):
        print("This is the method of DerivedClass1.")

class DerivedClass2(BaseClass):
    def method(self):
        print("This is the method of DerivedClass2.")

# 使用派生类作为if-else语句的条件
obj1 = DerivedClass1()
obj2 = DerivedClass2()

if isinstance(obj1, BaseClass):
    obj1.method()  # 输出：This is the method of DerivedClass1.
elif isinstance(obj2, BaseClass):
    obj2.method()  # 输出：This is the method of DerivedClass2.
else:
    print("Invalid object.")