airopt-manager/adi-ui/.pnpm-store/v10/files/a8/ce650b1801bc255f544f4d8ea22b36c6764f8fe159cebdaf02732dbb1508177c2da0636a3d0108d0716b7ee7ebbf4b28da9880c89b498ece007f7a3e58d231

var stream = require('stream')


function isStream (obj) {
  return obj instanceof stream.Stream
}


function isReadable (obj) {
  return isStream(obj) && typeof obj._read == 'function' && typeof obj._readableState == 'object'
}


function isWritable (obj) {
  return isStream(obj) && typeof obj._write == 'function' && typeof obj._writableState == 'object'
}


function isDuplex (obj) {
  return isReadable(obj) && isWritable(obj)
}


module.exports            = isStream
module.exports.isReadable = isReadable
module.exports.isWritable = isWritable
module.exports.isDuplex   = isDuplex