Shared object must have synchronized interface?

[Domain]

class A
{
    public synchronized void test1()
    {
    }
    public void test2()
    {
    }
}

int main(string[] argv)
{
    auto a1 = new shared(A)();
    a1.test1();
    a1.test2();

    auto a2 = new A();
    a2.test1();
    a2.test2();
}

Error: function main.A.test2 () is not callable using argument 
types () shared
Error: function main.A.test1 () shared is not callable using 
argument types ()

So, if I want a class support both shared and non-shared, I must 
override all method?