nl_tokens: Tell the classifier that the given sample belongs to the given classes .
pl_tokens: function ( sample , classes ) { sample = this . sampleToFeatures ( sample , this . featureExtractor ) ; var category = ( Array . isArray ( classes ) ? <mask> [ 0 ] : classes ) ; this . multiclassClassifier . trainOnline ( sample , category ) ; /*for (var positiveClass in classes) {
  			this.makeSureClassifierExists(positiveClass);
  			this.mapClassnameToClassifier[positiveClass].trainOnline(sample, 1);
  		}
  		for (var negativeClass in this.mapClassnameToClassifier) {
  			if (!classes[negativeClass])
  				this.mapClassnameToClassifier[negativeClass].trainOnline(sample, 0);
  		}*/ }