title: Google Maps single country boundary
body: <p>I would like to show country boundaries for only one country inside Google Map, just like it's done here:</p>
  
  <p><img src="https://i.stack.imgur.com/TImYT.png" alt="enter image description here"></p>
  
  <p>Does anybody have an idea if it's possible to get such map using Google Maps and how to achieve it?</p>