Open Stack

Hmm, not sure I like changing the return type based on the input type. Return types should be consistent. 



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From: Ed Leafe
>  If we are going to add an optional parameter to specify the number of instances, would it be acceptable to specify that when that parameter is included, a reservation ID is returned instead of an instance ID? IOW, existing calls will work the same, but calls that take advantage of this new option would expect a different result.