 (string): The HTML id for the custom control.</li>
<li><code>classes</code> (string): A string containing all the HTML classes for the custom control.</li>
<li><code>content</code> (string or HTML element): The content of the custom control.</li>
<li><code>position</code> (string): Any valid <a href="https://developers.google.com/maps/documentation/javascript/controls#ControlPositioning"><code>google.maps.ControlPosition</code></a> value, in lower or upper case.</li>
<li><code>events</code> (object): The k