function LowPass() {
    filter_classCallCheck(this, LowPass);
    return _super2.call(this, 'lowpass');
  }
Constructor: <code>new p5.LowPass()</code> Filter.
 This is the same as creating a p5.Filter and then calling
 its method <code>setType('lowpass')</code>.
 See p5.Filter for methods.

 @class p5.LowPass
 @constructor
 @extends p5.Filter