This comment is a little indirect (who does "we" / "you" refer to?). How about something like,

    * A hook for Abstract Driver subclasses to respond to changes in the
    * client's timeout. Override where necessary.

Also, it looks like the other methods are decorated with the [JSDoc `@method` tag](http://usejsdoc.org/tags-method.html).  This change should do the same for consistency's sake.