title: t4 "using" keyword
body: <p>I'm new with t4.</p>
  
  <p>I would like to generate code to cs file.
  I created a new tt file.</p>
  
  <pre><code>&lt;#@ template debug="false" hostspecific="false" language="C#" #&gt;
  &lt;#@ output extension=".cs" #&gt;
  
  class IOperation {
  
  &lt;#
  OperationSection section = null;
  
  #&gt;
  }
  </code></pre>
  
  <p>OperationSection is a class in the same assembly.
  I assume that I should use the "using" keyword.</p>
  
  <p>How I do it?
  Now I receiving an error</p>
  
  <p>Error   2   Compiling transformation: The type or namespace name 'OperationSection' could not be found (are you missing a using directive or an assembly reference?)    </p>
  
  <p>thanks</p>