title: using variable length argument in scala
body: <p>I know how to define a method with variable length argument: </p>
  
  <pre><code>  case class taxonomy(vocabularies:(String,Set[String])*)
  </code></pre>
  
  <p>and client code is very clean:</p>
  
  <pre><code>  val terms=taxonomy("topics"-&gt;Set("economic","politic")
                     ,"tag"-&gt;Set("Libya","evolution")
                     )
  </code></pre>
  
  <p>but I want to Know how can I use this case class when I have a variable (instead of a Sequence of variable) like this:</p>
  
  <pre><code>val notFormattedTerms = Map("topics"-&gt;Set("economic","politic")
         ,"tag"-&gt;Set("Libya","evolution"))
  </code></pre>