# File lib/heroku/command/ps.rb, line 32
  def workers
    app = extract_app
    if workers = args.shift
      current = heroku.set_workers(app, workers)
      display "#{app} now running #{quantify("worker", current)}"
    else
      info = heroku.info(app)
      display "#{app} is running #{quantify("worker", info[:workers])}"
    end
  end