title: spark for typescript syntax
body: <p>I try to use Spark with TypeScript but when I write this</p>
  
  <pre><code>Spark.get("/facture", (req, res) =&gt; { 
      chalk.red('Hello test');
      chalk.green('Hello word');
  })
  </code></pre>
  
  <p>It return me undefined but when I write only 1 line it works  </p>
  
  <pre><code>Spark.get("/facture", (req, res) =&gt; 
      chalk.green('Hello word');
  )
  </code></pre>
  
  <p>I think that the problem come from the syntax. Someone can help me please</p>