1  exports = module.exports = require('./lib/_stream_readable.js');
2  exports.Stream = exports;
3  exports.Readable = exports;
4  exports.Writable = require('./lib/_stream_writable.js');
5  exports.Duplex = require('./lib/_stream_duplex.js');
6  exports.Transform = require('./lib/_stream_transform.js');
7  exports.PassThrough = require('./lib/_stream_passthrough.js');
8  exports.finished = require('./lib/internal/streams/end-of-stream.js');
9  exports.pipeline = require('./lib/internal/streams/pipeline.js');