pan>,<span class="stringliteral">&#39;tiff&#39;</span>}))</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;      error(<span class="stringliteral">&#39;Preview must be &#39;</span><span class="stringliteral">&#39;none&#39;</span><span class="stringliteral">&#39; or &#39;</span><span class="stringliteral">&#39;tiff&#39;</span><span class="charliteral">&#39;.&#39;</span>);</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;    end</div><div cla