nl_tokens: Emits the output of the decoder as named events .
pl_tokens: function Emitter ( opts ) { Transform . call ( this ) ; this . _writableState . objectMode = true ; this . _readableState . objectMode = true ; opts = opts || { } ; // emit a fixed event name // rather than the default type this . name = opts . <mask> ; this . passthrough = opts . passthrough ; }