how to read some in vibe.d tcpconnection?

[Kagamin via Digitalmars-d-learn]

On Sunday, 8 March 2015 at 03:09:00 UTC, zhmt wrote:
> Yes, this a good idea, if the author of vibe.d do this, will be 
> better, it is used frequently in many scenes.

You can do it too, unlike in C++, in D you can write extension 
methods to any type, as long as they are visible, you can call 
them on the first argument, it's called UFCS: 
http://dlang.org/function.html#pseudo-member