ing&nbsp;key)</pre>
<div class="block">Get the value for a particular variable.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>key</code> - the name of the variable to get</dd>
<dt><span class="strong">Returns:</span></dt><dd>the associated value or null if this variable
 is not in the internal map</dd></dl>
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