text: var fs = require('fs')
  var Bugsnag = require('@bugsnag/node')
  Bugsnag.start({
    apiKey: process.env.BUGSNAG_API_KEY,
    endpoints: {
      notify: process.env.BUGSNAG_NOTIFY_ENDPOINT,
      sessions: process.env.BUGSNAG_SESSIONS_ENDPOINT
    }
  })
  
  var contextualize = Bugsnag.getPlugin('contextualize')
  contextualize(function () {
    fs.createReadStream('does not exist')
  }, function (event) {
    event.addMetadata('subsystem', { name: 'fs reader', widgetsAdded: 'cat,dog,mouse' })
  })
  