Function isDuplexNodeStream

lib/internal/streams/utils.js:59–66

(obj)

}

function isDuplexNodeStream(obj) {
  return !!(
    obj &&
    (typeof obj.pipe === 'function' && obj._readableState) &&
    typeof obj.on === 'function' &&
    typeof obj.write === 'function'
  );
}

function isNodeStream(obj) {
  return (