through attribute
 namespace, set the name and value of the attribute into the pass through attributes map of the component. See
 <a href="../../../../../../jakarta/faces/component/UIComponent.html#getPassThroughAttributes(boolean)"><code>UIComponent.getPassThroughAttributes(boolean)</code></a>. See the VDLDocs for the namespace URI of the pass through
 attribute namespace. Attributes whose value is a <code>ValueExpression</code> must remain un-evaluated and stored in the
 map as <code>ValueExpression</code