ang.Class)</code></a> for the header value
 class or using its <code>toString</code> method if a header delegate is not available.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>name</code> - the message header.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the message header value. If the message header is not present then <code>null</code> is returned. If the message
 header is present but has no value then the empty string is returned. If the message header is pre