MVP different concepts

Hey I have question to experienced developers about MVP.

There are a lot of MVP implementations but my question is about pros/cons for this 2 versions.

1. interface View<T extends Presenter>
2. interface Presenter<V extends View>

In a lot of examples a see MVP with version number 2 but Google in example app using version number 1.

Has some one experience and can give some feedback about this 2 versions how it looks in developing process / testing / pros/cons etc.

Thanks!