yle="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">)&nbsp;||&nbsp;(</span><span style="color: #0000BB">$data&nbsp;</span><span style="color: #007700">instanceof&nbsp;</span><span style="color: #0000BB">Traversable</span><span style="color: #007700">))<br />&nbsp;&nbsp;&nbsp;&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$this</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">clear</spa