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<pre class="methodSignature">public&nbsp;boolean&nbsp;isNullKey()</pre>
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<pre class="methodSignature">public&nbsp;<a href="KV.html" title="class in io.streamthoughts.azkarra.api.model">KV</a>&lt;<a href="KV.html" title="type parameter in KV">V</a>,&#8203;<a href="KV.html" title="type parameter in KV">K</a>&g