Function transform

lib/transform/generator.js:63–65

(chunk, encoding, done)

		readableObjectMode,
		readableHighWaterMark: getDefaultHighWaterMark(readableObjectMode),
		transform(chunk, encoding, done) {
			transformMethod([chunk, generators, 0], this, done);
		},
		flush(done) {
			finalMethod([generators], this, done);
		},