nl_tokens: private function :
pl_tokens: function ( label ) { if ( ! this . mapClassnameToClassifier [ label ] ) { // make sure classifier exists this . mapClassnameToClassifier [ label ] = new this . binaryClassifierType ( ) ; if ( this . featureLookupTable && this . mapClassnameToClassifier [ <mask> ] . setFeatureLookupTable ) this . mapClassnameToClassifier [ label ] . setFeatureLookupTable ( this . featureLookupTable ) ; } }