code: function fetchProvisionedInfo (heroku, addon) {
    return heroku.request({
      host: host(addon),
      method: 'get',
      path: `/data/kafka/v0/clusters/${addon.id}`
    }).catch(err => {
      if (err.statusCode !== 404) throw err
      cli.exit(1, `${cli.color.addon(addon.name)} is not yet provisioned.\nRun ${cli.color.cmd('heroku kafka:wait')} to wait until the cluster is provisioned.`)
    })
  }
docs: Fetch kafka info about a provisioned cluster or exit with failure