title: Laravel router namespace method
body: <p>In Laravel documentation <a href="https://laravel.com/docs/5.6/routing" rel="nofollow noreferrer">routing</a> there is a namespace method. </p>
  
  <pre><code>Route::namespace
  </code></pre>
  
  <p>I tried to explore what does it really do but couldn't find it's definition in Laravel source codes. Where is it?</p>