title: How to structure utility class
body: <p>I have several utility functions.  What is the best way to package these up, and then import them?</p>
  
  <p>This is what I am trying to do:</p>
  
  <pre><code>import * as util from './util'
  
  export class myClass{
       constructor()
       {
             util.doSomething("test");
       }
  }
  </code></pre>
  
  <p>Then in the class:</p>
  
  <pre><code>export class Util{
      doSomething(val: string){ return val;}
  
      doSomethingElse(val: string{ return val;}
  }
  </code></pre>
  
  <p>The error message I get from VS is:</p>
  
  <blockquote>
    <p><code>Property doSomething does not exist on type util.</code></p>
  </blockquote>