| 12345678910111213141516171819 | var Stream = require('stream');if (process.env.READABLE_STREAM === 'disable' && Stream) {  module.exports = Stream;  exports = module.exports = Stream.Readable;  exports.Readable = Stream.Readable;  exports.Writable = Stream.Writable;  exports.Duplex = Stream.Duplex;  exports.Transform = Stream.Transform;  exports.PassThrough = Stream.PassThrough;  exports.Stream = Stream;} else {  exports = module.exports = require('./lib/_stream_readable.js');  exports.Stream = Stream || exports;  exports.Readable = exports;  exports.Writable = require('./lib/_stream_writable.js');  exports.Duplex = require('./lib/_stream_duplex.js');  exports.Transform = require('./lib/_stream_transform.js');  exports.PassThrough = require('./lib/_stream_passthrough.js');}
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