Misleading doc string

[Todd Fleming]

I'd avoid having the word "key" in the description if possible.

How about:
"This returns true if the Mapping includes the argument as a value."

This is similar to the doc string for "m@(Mapping traits) includesKey: 
key" in mapping.slate. 

Todd

Brian Rice wrote:

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>
> That's an interesting point. I wrote it thinking "keyed" meant  
> "stored", but I see what you mean.
>
> How about:
> "Answers whether the Dictionary refers to this object (or an  
> equivalent one) with one of its keys."?