n class='lparen'>(</span><span class='label'>origin:</span> <span class='symbol'>:client</span><span class='comma'>,</span> <span class='op'>&amp;</span><span class='id identifier rubyid_block'>block</span><span class='rparen'>)</span>
  <span class='kw'>unless</span> <span class='lparen'>(</span><span class='id identifier rubyid_token'>token</span> <span class='op'>=</span> <span class='id identifier rubyid_locksmith'>locksmith</span><span class='period'>.</span><span class='id identifier rubyid_lock'>lock