# File lib/stella.rb, line 140
    def get(uri, opts={})
      opts[:concurrency] ||= 1
      opts[:repetitions] ||= 1
      run = checkup uri, opts
      report = run.report
      if report.processed? && report.content && report.statuses.success?
        report.content.response_body 
      else
        nil
      end
    end