lass="block">Return the type representing the key type of the map.</div>
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<td class="colFirst"><code><a href="../../../../javax/persistence/metamodel/Type.html" title="interface in javax.persistence.metamodel">Type</a>&lt;<a href="../../../../javax/persistence/metamodel/SingularAttribute.html" title="type parameter in SingularAttribute">T</a>&gt;</code></td>
<td class="colLast"><span class="typeNameLabel">SingularAttribute.</span><code><span class="memberNameLink"><a href=".