generics, reflection, getting access to auto generated code

I'm using google's protobuf library that autogenerates code for you. So if you have a PersonRequest for your Person object, it'll generate code for you that looks something like

PersonRequest.parseFrom(byte[] bytes)

So for each of my requests, I have some code that looks like

XXXXXRequest.paseFrom(byte[] bytes)

What I want to do is write an interface like

public interface MyInterface<T> {
    T parseFrom(byte[] bytes)
}

And then after that, I'm not really sure what to do in the implementation. Does it go like

public class MyInterfaceImpl<T> implements MyInterface<T> {
    @Override
    T parseFrom(byte[] bytes) {
         return T.parseFrom(bytes);   //  what do I do here?
    }
}

I'm not sure if it's possible to get the object's methods through reflection or what I should do here?