nl_tokens: Creates an instance of this class .
pl_tokens: function MuteToggle ( <mask> , options ) { classCallCheck ( this , MuteToggle ) ; // hide this control if volume support is missing var _this = possibleConstructorReturn ( this , _Button . call ( this , player , options ) ) ; checkVolumeSupport ( _this , player ) ; _this . on ( player , [ 'loadstart' , 'volumechange' ] , _this . update ) ; return _this ; }