text: #!/usr/bin/env node
  
  require('arguable')(module, require('cadence')(function (async, program) {
      var delta = require('delta')
      var semver = require('semver')
      program.stdin.resume()
      async(function () {
          delta(async()).ee(program.stdin).on('data', []).on('end')
      }, function (stdin) {
          var json = JSON.parse(Buffer.concat(stdin).toString())
          program.stdout.write(json.versions.sort(semver.compare).pop() + '\n')
      })
  }))
  