function HighPass() {
    filter_classCallCheck(this, HighPass);
    return _super3.call(this, 'highpass');
  }
Constructor: <code>new p5.HighPass()</code> Filter.
 This is the same as creating a p5.Filter and then calling
 its method <code>setType('highpass')</code>.
 See p5.Filter for methods.

 @class p5.HighPass
 @constructor
 @extends p5.Filter