nl_tokens: Creates an instance of this class .
pl_tokens: function SeekBar ( player , options ) { classCallCheck ( this , SeekBar ) ; var _this = possibleConstructorReturn ( this , _Slider . call ( this , player , options ) ) ; _this . update = throttle ( <mask> ( _this , _this . update ) , 50 ) ; _this . on ( player , [ 'timeupdate' , 'ended' ] , _this . update ) ; return _this ; }