.pick不支持混合？

Question

我正在尝试这样做：

 my Mix $mix = { foo => 3.5, bar => 2.5}.Mix; 
 say $mix.pick

从理论上讲，这是可行的，因为巴吉和松松垮垮的。但是，我得到了错误：

.pick is not supported on a Mix

知道为什么不支持吗？我该用什么方法呢？

Answer 1

知道为什么不支持吗？

也许：

lizmat     TimToady: .pick($n > 1) on a MixHash, how would that work? I assume it won't work? What to deduct for a chosen key?
lizmat     (or on a Mix, for that matter)
TimToady   I don't we need to support .pick on a Mix until someone comes up with a real use case

来自log/perl6 6?日期=2013-10-03#l 1369

我该用什么方法呢？

我怀疑这是“自己写”。