TypeScript - what type is f.e. setInterval : <p>If I'd like to assign a type to a variable that will later be assigned a setInterval like so:</p>

<pre><code>this.autoSaveInterval = setInterval(function(){
      if(this.car.id){
        this.save();
      }
      else{
        this.create();
      }
    }.bind(this), 50000);
</code></pre>

<p>What type should be assigned to this.autosaveInterval vairable?</p>
