The Postal Golem

Idea: A mail golem, its task is to deliver items to the specified player, I have played minecraft a lot, and I know that I really miss delivery. I'm playing with a friend, he's on a mountain, and I'm in a cave. And then I build a mail golem, and I send him diamonds, then when my diamonds have reached him, he sends a tree.Implementation: To implement a mail golem, I suggest so, it will have slots like a chest. As well as the player selection panel. And it will go to the player, for optimization, it will be visible in the visibility of the players' chunks.In addition, it is possible not only for players, but also for the position. For example, the mail golem goes to the position -12 41 31, returns to 87 41 31. You have understood the idea, and decide the implementation yourself.