dist/multilabel/MulticlassSegmentation.js
function(sample, featureExtractor) {
		var features = sample;
		if (featureExtractor) {
			try {
				features = {};
				featureExtractor(sample, features);
			} catch (err) {
				throw new Error("Cannot extract features from '"+JSON.stringify(sample)+"': "+JSON.stringify(err));
			}
		}
		return features;
	}
function(sample, featureExtractor) {
		var features = sample;
		if (featureExtractor) {
			try {
				features = {};
				featureExtractor(sample, features);
			} catch (err) {
				throw new Error("Cannot extract features from '"+JSON.stringify(sample)+"': "+JSON.stringify(err));
			}
		}
		return features;
	}
private function: