#0000BB">$last</span><span style="color: #007700">[</span><span style="color: #0000BB">0</span><span style="color: #007700">]===</span><span style="color: #0000BB">$token</span><span style="color: #007700">)<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$delta</span><span style="color: #007700">=</span><span style="color: #0000BB">$log</spa