[codeflo]

That introduces a new named type though, i.e., the "any" in your package is different from the "any" in mine, which is not what I want.

(Unless I'm mistaken here, which might very well be the case.)

[krakensden]

Check it out: http://play.golang.org/p/l9yn0PRbrd

Anyway, that's the point of go's type inference- if the object implements the necessary parts of the interface, it counts as that kind of object.