Summary
    Gets a value indicating whether the argument can only be specified once
    with a certain value.
    
		- Assembly
 - NAnt
.Core .dll  - Namespace
 - NAnt
.Core .Util  - Containing Type
 - CommandLineArgument
 
Syntax
public bool Unique { get; }
	Value
| Type | Description | 
|---|---|
| bool | 
    true if the argument should always have a unique 
    value; otherwise, false.
     | 
				
