span class='period'>.</span><span class='id identifier rubyid_execute'>execute</span> <span class='kw'>do</span>
      <span class='kw'>yield</span>
      <span class='id identifier rubyid_callback_safely'>callback_safely</span> <span class='kw'>if</span> <span class='id identifier rubyid_locksmith'>locksmith</span><span class='period'>.</span><span class='id identifier rubyid_unlock'>unlock</span>
    <span class='kw'>ensure</span>
      <span class='id identifier rubyid_locksmith'>locksmith</span><span cl